113404220 has 24 divisors (see below), whose sum is σ = 238493808. Its totient is φ = 45296000.

The previous prime is 113404199. The next prime is 113404273. The reversal of 113404220 is 22404311.

It is a super-2 number, since 2×113404220² = 25721034227616800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11495 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (9937242).

Almost surely, 2^113404220 is an apocalyptic number.

113404220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113404220 is an abundant number, since it is smaller than the sum of its proper divisors (125089588).

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

113404220 is a wasteful number, since it uses less digits than its factorization.

113404220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221 (or 8219 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 113404220 is about 10649.1417494557. The cubic root of 113404220 is about 484.0345978501.

Adding to 113404220 its reverse (22404311), we get a palindrome (135808531).

Subtracting from 113404220 its reverse (22404311), we obtain a palindrome (90999909).

The spelling of 113404220 in words is "one hundred thirteen million, four hundred four thousand, two hundred twenty".