189689424 has 20 divisors (see below), whose sum is σ = 490031136. Its totient is φ = 63229792.

The previous prime is 189689399. The next prime is 189689449. The reversal of 189689424 is 424986981.

189689424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189689399) and next prime (189689449).

It is a congruent number.

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, 1975884 + ... + 1975979.

Almost surely, 2^189689424 is an apocalyptic number.

It is an amenable number.

189689424 is an abundant number, since it is smaller than the sum of its proper divisors (300341712).

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

189689424 is a wasteful number, since it uses less digits than its factorization.

189689424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951874 (or 3951868 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 189689424 is about 13772.7783689421. The cubic root of 189689424 is about 574.5762968080.

The spelling of 189689424 in words is "one hundred eighty-nine million, six hundred eighty-nine thousand, four hundred twenty-four".