190056858 has 16 divisors (see below), whose sum is σ = 380933280. Its totient is φ = 63215696.

The previous prime is 190056833. The next prime is 190056899. The reversal of 190056858 is 858650091.

It is a super-2 number, since 2×190056858² = 72243218545664328, which contains 22 as substring.

It is a Curzon 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, 31113 + ... + 36716.

It is an arithmetic number, because the mean of its divisors is an integer number (23808330).

Almost surely, 2^190056858 is an apocalyptic number.

190056858 is an abundant number, since it is smaller than the sum of its proper divisors (190876422).

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

190056858 is a wasteful number, since it uses less digits than its factorization.

190056858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68301.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 190056858 is about 13786.1110542459. Note that the first 3 decimals coincide. The cubic root of 190056858 is about 574.9470479278.

The spelling of 190056858 in words is "one hundred ninety million, fifty-six thousand, eight hundred fifty-eight".