113601440 has 24 divisors (see below), whose sum is σ = 268383780. Its totient is φ = 45440512.

The previous prime is 113601431. The next prime is 113601451. The reversal of 113601440 is 44106311.

It can be written as a sum of positive squares in 2 ways, for example, as 110082064 + 3519376 = 10492^2 + 1876^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 354845 + ... + 355164.

Almost surely, 2^113601440 is an apocalyptic number.

113601440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113601440 is an abundant number, since it is smaller than the sum of its proper divisors (154782340).

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

113601440 is an equidigital number, since it uses as much as digits as its factorization.

113601440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710024 (or 710016 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 113601440 is about 10658.3976281616. The cubic root of 113601440 is about 484.3150283850.

Adding to 113601440 its reverse (44106311), we get a palindrome (157707751).

The spelling of 113601440 in words is "one hundred thirteen million, six hundred one thousand, four hundred forty".