189464556 has 24 divisors (see below), whose sum is σ = 442376704. Its totient is φ = 63113040.

The previous prime is 189464503. The next prime is 189464573. The reversal of 189464556 is 655464981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17661 + ... + 26283.

Almost surely, 2^189464556 is an apocalyptic number.

It is an amenable number.

189464556 is an abundant number, since it is smaller than the sum of its proper divisors (252912148).

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

189464556 is a wasteful number, since it uses less digits than its factorization.

189464556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461 (or 10459 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The square root of 189464556 is about 13764.6124536799. The cubic root of 189464556 is about 574.3491625295.

The spelling of 189464556 in words is "one hundred eighty-nine million, four hundred sixty-four thousand, five hundred fifty-six".