18890075 has 12 divisors (see below), whose sum is σ = 23547600. Its totient is φ = 15032160.

The previous prime is 18890063. The next prime is 18890087. The reversal of 18890075 is 57009881.

It is an interprime number because it is at equal distance from previous prime (18890063) and next prime (18890087).

It is not a de Polignac number, because 18890075 - 2¹⁰ = 18889051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3077 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (1962300).

Almost surely, 2^18890075 is an apocalyptic number.

18890075 is a deficient number, since it is larger than the sum of its proper divisors (4657525).

18890075 is a wasteful number, since it uses less digits than its factorization.

18890075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 18890075 is about 4346.2713905139. The cubic root of 18890075 is about 266.3245656538.

The spelling of 18890075 in words is "eighteen million, eight hundred ninety thousand, seventy-five".