189733444 has 6 divisors (see below), whose sum is σ = 332033534. Its totient is φ = 94866720.

The previous prime is 189733433. The next prime is 189733459. The reversal of 189733444 is 444337981.

It can be written as a sum of positive squares in only one way, i.e., 137170944 + 52562500 = 11712^2 + 7250^2 .

It is a super-2 number, since 2×189733444² = 71997559544202272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189733444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23716677 + ... + 23716684.

Almost surely, 2^189733444 is an apocalyptic number.

It is an amenable number.

189733444 is a deficient number, since it is larger than the sum of its proper divisors (142300090).

189733444 is a wasteful number, since it uses less digits than its factorization.

189733444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47433365 (or 47433363 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 189733444 is about 13774.3763561186. The cubic root of 189733444 is about 574.6207394410.

The spelling of 189733444 in words is "one hundred eighty-nine million, seven hundred thirty-three thousand, four hundred forty-four".