189494044 has 12 divisors (see below), whose sum is σ = 334834864. Its totient is φ = 93826944.

The previous prime is 189494021. The next prime is 189494047. The reversal of 189494044 is 440494981.

It is a happy number.

It is a super-2 number, since 2×189494044² = 71815985422947872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189494047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229557 + ... + 230380.

Almost surely, 2^189494044 is an apocalyptic number.

It is an amenable number.

189494044 is a deficient number, since it is larger than the sum of its proper divisors (145340820).

189494044 is a wasteful number, since it uses less digits than its factorization.

189494044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460044 (or 460042 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 189494044 is about 13765.6835645746. The cubic root of 189494044 is about 574.3789579521.

The spelling of 189494044 in words is "one hundred eighty-nine million, four hundred ninety-four thousand, forty-four".