113632640 has 64 divisors (see below), whose sum is σ = 296367120. Its totient is φ = 41318400.

The previous prime is 113632637. The next prime is 113632657. The reversal of 113632640 is 46236311.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031 + ... + 15110.

Almost surely, 2^113632640 is an apocalyptic number.

113632640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113632640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148183560).

113632640 is an abundant number, since it is smaller than the sum of its proper divisors (182734480).

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

113632640 is a wasteful number, since it uses less digits than its factorization.

113632640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16171 (or 16159 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 113632640 is about 10659.8611623229. The cubic root of 113632640 is about 484.3593624643.

Adding to 113632640 its reverse (46236311), we get a palindrome (159868951).

The spelling of 113632640 in words is "one hundred thirteen million, six hundred thirty-two thousand, six hundred forty".