113124440 has 64 divisors (see below), whose sum is σ = 299043360. Its totient is φ = 37969920.

The previous prime is 113124433. The next prime is 113124449. The reversal of 113124440 is 44421311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113124449) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4169 + ... + 15608.

Almost surely, 2^113124440 is an apocalyptic number.

113124440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113124440 is an abundant number, since it is smaller than the sum of its proper divisors (185918920).

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

113124440 is a wasteful number, since it uses less digits than its factorization.

113124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19812 (or 19808 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 113124440 is about 10635.9973674310. The cubic root of 113124440 is about 483.6362154960.

Adding to 113124440 its reverse (44421311), we get a palindrome (157545751).

The spelling of 113124440 in words is "one hundred thirteen million, one hundred twenty-four thousand, four hundred forty".