113447640 has 32 divisors (see below), whose sum is σ = 340343280. Its totient is φ = 30252672.

The previous prime is 113447629. The next prime is 113447641. The reversal of 113447640 is 46744311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 113447598 and 113447607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113447641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472579 + ... + 472818.

Almost surely, 2^113447640 is an apocalyptic number.

113447640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113447640 is an abundant number, since it is smaller than the sum of its proper divisors (226895640).

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

113447640 is a wasteful number, since it uses less digits than its factorization.

113447640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945411 (or 945407 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 113447640 is about 10651.1802162953. The cubic root of 113447640 is about 484.0963653943.

The spelling of 113447640 in words is "one hundred thirteen million, four hundred forty-seven thousand, six hundred forty".