18375452 has 6 divisors (see below), whose sum is σ = 32157048. Its totient is φ = 9187724.

The previous prime is 18375443. The next prime is 18375463. The reversal of 18375452 is 25457381.

It is a happy number.

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, 2296928 + ... + 2296935.

It is an arithmetic number, because the mean of its divisors is an integer number (5359508).

Almost surely, 2^18375452 is an apocalyptic number.

It is an amenable number.

18375452 is a deficient number, since it is larger than the sum of its proper divisors (13781596).

18375452 is a wasteful number, since it uses less digits than its factorization.

18375452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593867 (or 4593865 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 18375452 is about 4286.6597718970. The cubic root of 18375452 is about 263.8837680869.

The spelling of 18375452 in words is "eighteen million, three hundred seventy-five thousand, four hundred fifty-two".