190780056 has 32 divisors (see below), whose sum is σ = 529945200. Its totient is φ = 63593280.

The previous prime is 190780049. The next prime is 190780087. The reversal of 190780056 is 650087091.

190780056 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 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 190780056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441405 + ... + 441836.

Almost surely, 2^190780056 is an apocalyptic number.

It is an amenable number.

190780056 is an abundant number, since it is smaller than the sum of its proper divisors (339165144).

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

190780056 is a wasteful number, since it uses less digits than its factorization.

190780056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883256 (or 883246 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 190780056 is about 13812.3153743317. The cubic root of 190780056 is about 575.6753813238.

The spelling of 190780056 in words is "one hundred ninety million, seven hundred eighty thousand, fifty-six".