189017974 has 16 divisors (see below), whose sum is σ = 293973120. Its totient is φ = 91054080.

The previous prime is 189017971. The next prime is 189017999. The reversal of 189017974 is 479710981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189017971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7542 + ... + 20854.

It is an arithmetic number, because the mean of its divisors is an integer number (18373320).

Almost surely, 2^189017974 is an apocalyptic number.

189017974 is a deficient number, since it is larger than the sum of its proper divisors (104955146).

189017974 is a wasteful number, since it uses less digits than its factorization.

189017974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13575.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 189017974 is about 13748.3807773861. The cubic root of 189017974 is about 573.8975463318.

The spelling of 189017974 in words is "one hundred eighty-nine million, seventeen thousand, nine hundred seventy-four".