18889075 has 12 divisors (see below), whose sum is σ = 24179008. Its totient is φ = 14623200.

The previous prime is 18889051. The next prime is 18889081. The reversal of 18889075 is 57098881.

It is a de Polignac number, because none of the positive numbers 2^k-18889075 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11412 + ... + 12961.

Almost surely, 2^18889075 is an apocalyptic number.

18889075 is a deficient number, since it is larger than the sum of its proper divisors (5289933).

18889075 is a wasteful number, since it uses less digits than its factorization.

18889075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24414 (or 24409 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 46.

The square root of 18889075 is about 4346.1563478550. The cubic root of 18889075 is about 266.3198660207.

The spelling of 18889075 in words is "eighteen million, eight hundred eighty-nine thousand, seventy-five".