189623464 has 16 divisors (see below), whose sum is σ = 363813120. Its totient is φ = 92606640.

The previous prime is 189623459. The next prime is 189623479. The reversal of 189623464 is 464326981.

It is a happy number.

189623464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 189623464.

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, 275272 + ... + 275959.

It is an arithmetic number, because the mean of its divisors is an integer number (22738320).

Almost surely, 2^189623464 is an apocalyptic number.

It is an amenable number.

189623464 is a deficient number, since it is larger than the sum of its proper divisors (174189656).

189623464 is a wasteful number, since it uses less digits than its factorization.

189623464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551280 (or 551276 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 189623464 is about 13770.3835821665. The cubic root of 189623464 is about 574.5096906589.

The spelling of 189623464 in words is "one hundred eighty-nine million, six hundred twenty-three thousand, four hundred sixty-four".