103020228 has 72 divisors (see below), whose sum is σ = 272311200. Its totient is φ = 33680448.

The previous prime is 103020227. The next prime is 103020271. The reversal of 103020228 is 822020301.

It is a happy number.

103020228 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×103020228² = 21226334754343968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

103020228 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 103020228.

It is not an unprimeable number, because it can be changed into a prime (103020227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575443 + ... + 575621.

It is an arithmetic number, because the mean of its divisors is an integer number (3782100).

Almost surely, 2^103020228 is an apocalyptic number.

103020228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103020228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136155600).

103020228 is an abundant number, since it is smaller than the sum of its proper divisors (169290972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103020228 is a wasteful number, since it uses less digits than its factorization.

103020228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 103020228 is about 10149.8880782007. Note that the first 3 decimals coincide. The cubic root of 103020228 is about 468.7854987516.

Adding to 103020228 its reverse (822020301), we get a palindrome (925040529).

The spelling of 103020228 in words is "one hundred three million, twenty thousand, two hundred twenty-eight".