113646388 has 12 divisors (see below), whose sum is σ = 204256612. Its totient is φ = 55287360.

The previous prime is 113646347. The next prime is 113646431. The reversal of 113646388 is 883646311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 85045284 + 28601104 = 9222^2 + 5348^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 113646388.

It is a congruent number.

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, 383793 + ... + 384088.

Almost surely, 2^113646388 is an apocalyptic number.

It is an amenable number.

113646388 is a deficient number, since it is larger than the sum of its proper divisors (90610224).

113646388 is a wasteful number, since it uses less digits than its factorization.

113646388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767922 (or 767920 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 113646388 is about 10660.5059917435. The cubic root of 113646388 is about 484.3788953027.

It can be divided in two parts, 1136 and 46388, that added together give a square (47524 = 218²).

The spelling of 113646388 in words is "one hundred thirteen million, six hundred forty-six thousand, three hundred eighty-eight".