113242440 has 64 divisors (see below), whose sum is σ = 359717760. Its totient is φ = 28421120.

The previous prime is 113242429. The next prime is 113242463. The reversal of 113242440 is 44242311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25716 + ... + 29795.

It is an arithmetic number, because the mean of its divisors is an integer number (5620590).

Almost surely, 2^113242440 is an apocalyptic number.

113242440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113242440 is an abundant number, since it is smaller than the sum of its proper divisors (246475320).

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

113242440 is a wasteful number, since it uses less digits than its factorization.

113242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55542 (or 55538 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 113242440 is about 10641.5431211831. The cubic root of 113242440 is about 483.8043172254.

Adding to 113242440 its reverse (44242311), we get a palindrome (157484751).

The spelling of 113242440 in words is "one hundred thirteen million, two hundred forty-two thousand, four hundred forty".