190025664 has 56 divisors (see below), whose sum is σ = 503925840. Its totient is φ = 63197184.

The previous prime is 190025663. The next prime is 190025681. The reversal of 190025664 is 466520091.

190025664 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190025664² = 72219505957281792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190025663) 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, 113022 + ... + 114690.

Almost surely, 2^190025664 is an apocalyptic number.

It is an amenable number.

190025664 is an abundant number, since it is smaller than the sum of its proper divisors (313900176).

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

190025664 is a wasteful number, since it uses less digits than its factorization.

190025664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 190025664 is about 13784.9796517804. The cubic root of 190025664 is about 574.9155908861.

The spelling of 190025664 in words is "one hundred ninety million, twenty-five thousand, six hundred sixty-four".