190925920 has 48 divisors (see below), whose sum is σ = 463267728. Its totient is φ = 74304000.

The previous prime is 190925909. The next prime is 190925939. The reversal of 190925920 is 29529091.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 190925920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10206 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (9651411).

Almost surely, 2^190925920 is an apocalyptic number.

190925920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190925920 is an abundant number, since it is smaller than the sum of its proper divisors (272341808).

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

190925920 is a wasteful number, since it uses less digits than its factorization.

190925920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32303 (or 32295 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 190925920 is about 13817.5945808234. The cubic root of 190925920 is about 575.8220579460.

The spelling of 190925920 in words is "one hundred ninety million, nine hundred twenty-five thousand, nine hundred twenty".