190806680 has 64 divisors (see below), whose sum is σ = 438372000. Its totient is φ = 74732544.

The previous prime is 190806677. The next prime is 190806713. The reversal of 190806680 is 86608091.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466316 + ... + 466724.

Almost surely, 2^190806680 is an apocalyptic number.

190806680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190806680 is an abundant number, since it is smaller than the sum of its proper divisors (247565320).

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

190806680 is a wasteful number, since it uses less digits than its factorization.

190806680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 190806680 is about 13813.2791182977. The cubic root of 190806680 is about 575.7021592249.

The spelling of 190806680 in words is "one hundred ninety million, eight hundred six thousand, six hundred eighty".