190990656 has 56 divisors (see below), whose sum is σ = 561482240. Its totient is φ = 63662976.

The previous prime is 190990651. The next prime is 190990663. The reversal of 190990656 is 656099091.

190990656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190990651) 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, 53536 + ... + 56991.

Almost surely, 2^190990656 is an apocalyptic number.

190990656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

190990656 is an abundant number, since it is smaller than the sum of its proper divisors (370491584).

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

190990656 is a wasteful number, since it uses less digits than its factorization.

190990656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110548 (or 110532 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 45.

The square root of 190990656 is about 13819.9369028950. The cubic root of 190990656 is about 575.8871306621.

The spelling of 190990656 in words is "one hundred ninety million, nine hundred ninety thousand, six hundred fifty-six".