190138384 has 20 divisors (see below), whose sum is σ = 381097260. Its totient is φ = 91790720.

The previous prime is 190138379. The next prime is 190138393. The reversal of 190138384 is 483831091.

It can be written as a sum of positive squares in 2 ways, for example, as 59721984 + 130416400 = 7728^2 + 11420^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204427 + ... + 205354.

It is an arithmetic number, because the mean of its divisors is an integer number (19054863).

Almost surely, 2^190138384 is an apocalyptic number.

It is an amenable number.

190138384 is an abundant number, since it is smaller than the sum of its proper divisors (190958876).

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

190138384 is a wasteful number, since it uses less digits than its factorization.

190138384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409818 (or 409812 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 190138384 is about 13789.0675536818. The cubic root of 190138384 is about 575.0292451414.

The spelling of 190138384 in words is "one hundred ninety million, one hundred thirty-eight thousand, three hundred eighty-four".