118390656 has 32 divisors (see below), whose sum is σ = 314476200. Its totient is φ = 39463424.

The previous prime is 118390651. The next prime is 118390667. The reversal of 118390656 is 656093811.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×118390656² = 28032694856220672, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118390651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153771 + ... + 154538.

Almost surely, 2^118390656 is an apocalyptic number.

118390656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

118390656 is an abundant number, since it is smaller than the sum of its proper divisors (196085544).

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

118390656 is an equidigital number, since it uses as much as digits as its factorization.

118390656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308326 (or 308314 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 118390656 is about 10880.7470331775. The cubic root of 118390656 is about 491.0274926776.

The spelling of 118390656 in words is "one hundred eighteen million, three hundred ninety thousand, six hundred fifty-six".