190810656 has 36 divisors (see below), whose sum is σ = 542618622. Its totient is φ = 63603456.

The previous prime is 190810621. The next prime is 190810663. The reversal of 190810656 is 656018091.

It can be written as a sum of positive squares in only one way, i.e., 148352400 + 42458256 = 12180^2 + 6516^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 190810656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330981 + ... + 331556.

Almost surely, 2^190810656 is an apocalyptic number.

190810656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

190810656 is an abundant number, since it is smaller than the sum of its proper divisors (351807966).

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

190810656 is a wasteful number, since it uses less digits than its factorization.

190810656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662553 (or 662542 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 190810656 is about 13813.4230370318. The cubic root of 190810656 is about 575.7061579946.

The spelling of 190810656 in words is "one hundred ninety million, eight hundred ten thousand, six hundred fifty-six".