189242392 has 8 divisors (see below), whose sum is σ = 354829500. Its totient is φ = 94621192.

The previous prime is 189242369. The next prime is 189242399. The reversal of 189242392 is 293242981.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×189242392³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189242399) by changing a digit.

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 as a sum of consecutive naturals, namely, 11827642 + ... + 11827657.

Almost surely, 2^189242392 is an apocalyptic number.

It is an amenable number.

189242392 is a deficient number, since it is larger than the sum of its proper divisors (165587108).

189242392 is a wasteful number, since it uses less digits than its factorization.

189242392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23655305 (or 23655301 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 189242392 is about 13756.5399719552. The cubic root of 189242392 is about 574.1245829449.

It can be divided in two parts, 18924 and 2392, that added together give a square (21316 = 146²).

The spelling of 189242392 in words is "one hundred eighty-nine million, two hundred forty-two thousand, three hundred ninety-two".