189018944 has 14 divisors (see below), whose sum is σ = 375084594. Its totient is φ = 94509440.

The previous prime is 189018923. The next prime is 189019003. The reversal of 189018944 is 449810981.

It can be written as a sum of positive squares in only one way, i.e., 188018944 + 1000000 = 13712^2 + 1000^2 .

It is a super-2 number, since 2×189018944² = 71456322381750272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189018895 and 189018904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476647 + ... + 1476774.

Almost surely, 2^189018944 is an apocalyptic number.

It is an amenable number.

189018944 is a deficient number, since it is larger than the sum of its proper divisors (186065650).

189018944 is an equidigital number, since it uses as much as digits as its factorization.

189018944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953433 (or 2953423 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 189018944 is about 13748.4160542224. The cubic root of 189018944 is about 573.8985280368.

The spelling of 189018944 in words is "one hundred eighty-nine million, eighteen thousand, nine hundred forty-four".