18881452 has 12 divisors (see below), whose sum is σ = 33584656. Its totient is φ = 9285840.

The previous prime is 18881437. The next prime is 18881461. The reversal of 18881452 is 25418881.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38448 + ... + 38935.

Almost surely, 2^18881452 is an apocalyptic number.

It is an amenable number.

18881452 is a deficient number, since it is larger than the sum of its proper divisors (14703204).

18881452 is a wasteful number, since it uses less digits than its factorization.

18881452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77448 (or 77446 counting only the distinct ones).

The product of its digits is 20480, while the sum is 37.

The square root of 18881452 is about 4345.2792775609. The cubic root of 18881452 is about 266.2840352649.

The spelling of 18881452 in words is "eighteen million, eight hundred eighty-one thousand, four hundred fifty-two".