189930654 has 24 divisors (see below), whose sum is σ = 413233392. Its totient is φ = 63046080.

The previous prime is 189930623. The next prime is 189930691. The reversal of 189930654 is 456039981.

It is a happy number.

189930654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 17554 + ... + 26229.

It is an arithmetic number, because the mean of its divisors is an integer number (17218058).

Almost surely, 2^189930654 is an apocalyptic number.

189930654 is an abundant number, since it is smaller than the sum of its proper divisors (223302738).

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

189930654 is a wasteful number, since it uses less digits than its factorization.

189930654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44032 (or 44029 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 189930654 is about 13781.5330787253. The cubic root of 189930654 is about 574.8197585036.

The spelling of 189930654 in words is "one hundred eighty-nine million, nine hundred thirty thousand, six hundred fifty-four".