189563394 has 16 divisors (see below), whose sum is σ = 379278432. Its totient is φ = 63162528.

The previous prime is 189563389. The next prime is 189563467. The reversal of 189563394 is 493365981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15997 + ... + 25199.

It is an arithmetic number, because the mean of its divisors is an integer number (23704902).

Almost surely, 2^189563394 is an apocalyptic number.

189563394 is an abundant number, since it is smaller than the sum of its proper divisors (189715038).

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

189563394 is a wasteful number, since it uses less digits than its factorization.

189563394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12641.

The product of its digits is 699840, while the sum is 48.

The square root of 189563394 is about 13768.2022791648. The cubic root of 189563394 is about 574.4490187687.

The spelling of 189563394 in words is "one hundred eighty-nine million, five hundred sixty-three thousand, three hundred ninety-four".