115694640 has 60 divisors (see below), whose sum is σ = 388543584. Its totient is φ = 30851712.

The previous prime is 115694633. The next prime is 115694653. The reversal of 115694640 is 46496511.

115694640 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 9 + 4 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 115694595 and 115694604.

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 11 ways as a sum of consecutive naturals, for example, 79624 + ... + 81063.

Almost surely, 2^115694640 is an apocalyptic number.

115694640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115694640 is an abundant number, since it is smaller than the sum of its proper divisors (272848944).

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

115694640 is a wasteful number, since it uses less digits than its factorization.

115694640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160706 (or 160697 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 115694640 is about 10756.1442905904. The cubic root of 115694640 is about 487.2715774054.

The spelling of 115694640 in words is "one hundred fifteen million, six hundred ninety-four thousand, six hundred forty".