190020928 has 28 divisors (see below), whose sum is σ = 377903232. Its totient is φ = 94801280.

The previous prime is 190020907. The next prime is 190020931. The reversal of 190020928 is 829020091.

190020928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190020928² = 72215906155962368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 190020928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28401 + ... + 34447.

It is an arithmetic number, because the mean of its divisors is an integer number (13496544).

Almost surely, 2^190020928 is an apocalyptic number.

It is an amenable number.

190020928 is a deficient number, since it is larger than the sum of its proper divisors (187882304).

190020928 is an equidigital number, since it uses as much as digits as its factorization.

190020928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550 (or 6540 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 190020928 is about 13784.8078695352. The cubic root of 190020928 is about 574.9108146490.

The spelling of 190020928 in words is "one hundred ninety million, twenty thousand, nine hundred twenty-eight".