113403840 has 112 divisors (see below), whose sum is σ = 392826240. Its totient is φ = 27489280.

The previous prime is 113403817. The next prime is 113403863. The reversal of 113403840 is 48304311.

It is an interprime number because it is at equal distance from previous prime (113403817) and next prime (113403863).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 113403840.

It is a congruent number.

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, 5191 + ... + 15929.

Almost surely, 2^113403840 is an apocalyptic number.

113403840 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 113403840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196413120).

113403840 is an abundant number, since it is smaller than the sum of its proper divisors (279422400).

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

113403840 is a wasteful number, since it uses less digits than its factorization.

113403840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10770 (or 10760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 113403840 is about 10649.1239076273. The cubic root of 113403840 is about 484.0340572078.

The spelling of 113403840 in words is "one hundred thirteen million, four hundred three thousand, eight hundred forty".