189938424 has 48 divisors (see below), whose sum is σ = 514193400. Its totient is φ = 58441344.

The previous prime is 189938389. The next prime is 189938449. The reversal of 189938424 is 424839981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19359 + ... + 27470.

Almost surely, 2^189938424 is an apocalyptic number.

It is an amenable number.

189938424 is an abundant number, since it is smaller than the sum of its proper divisors (324254976).

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

189938424 is a wasteful number, since it uses less digits than its factorization.

189938424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46864 (or 46847 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 189938424 is about 13781.8149748137. The cubic root of 189938424 is about 574.8275969586.

The spelling of 189938424 in words is "one hundred eighty-nine million, nine hundred thirty-eight thousand, four hundred twenty-four".