103404220 has 24 divisors (see below), whose sum is σ = 224155008. Its totient is φ = 40027200.

The previous prime is 103404209. The next prime is 103404221. The reversal of 103404220 is 22404301.

It is a junction number, because it is equal to n+sod(n) for n = 103404194 and 103404203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103404221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82771 + ... + 84010.

It is an arithmetic number, because the mean of its divisors is an integer number (9339792).

Almost surely, 2^103404220 is an apocalyptic number.

103404220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103404220 is an abundant number, since it is smaller than the sum of its proper divisors (120750788).

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

103404220 is a wasteful number, since it uses less digits than its factorization.

103404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166821 (or 166819 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 103404220 is about 10168.7865549435. The cubic root of 103404220 is about 469.3672184575.

Adding to 103404220 its reverse (22404301), we get a palindrome (125808521).

The spelling of 103404220 in words is "one hundred three million, four hundred four thousand, two hundred twenty".