103220280 has 96 divisors (see below), whose sum is σ = 347068800. Its totient is φ = 26573568.

The previous prime is 103220263. The next prime is 103220281. The reversal of 103220280 is 82022301.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103220281) 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, 5497 + ... + 15383.

It is an arithmetic number, because the mean of its divisors is an integer number (3615300).

Almost surely, 2^103220280 is an apocalyptic number.

103220280 is a gapful number since it is divisible by the number (10) 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 103220280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173534400).

103220280 is an abundant number, since it is smaller than the sum of its proper divisors (243848520).

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

103220280 is a wasteful number, since it uses less digits than its factorization.

103220280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933 (or 9926 counting only the distinct ones).

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

The square root of 103220280 is about 10159.7381856030. The cubic root of 103220280 is about 469.0887428813.

Adding to 103220280 its reverse (82022301), we get a palindrome (185242581).

It can be divided in two parts, 1032 and 20280, that added together give a palindrome (21312).

The spelling of 103220280 in words is "one hundred three million, two hundred twenty thousand, two hundred eighty".