190856764 has 18 divisors (see below), whose sum is σ = 388530240. Its totient is φ = 81795672.

The previous prime is 190856749. The next prime is 190856779. The reversal of 190856764 is 467658091.

190856764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (190856749) and next prime (190856779).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 486684 + ... + 487075.

Almost surely, 2^190856764 is an apocalyptic number.

190856764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

190856764 is an abundant number, since it is smaller than the sum of its proper divisors (197673476).

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

190856764 is a wasteful number, since it uses less digits than its factorization.

190856764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973777 (or 973768 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 190856764 is about 13815.0918925645. The cubic root of 190856764 is about 575.7525259880.

The spelling of 190856764 in words is "one hundred ninety million, eight hundred fifty-six thousand, seven hundred sixty-four".