18897452 has 24 divisors (see below), whose sum is σ = 37927680. Its totient is φ = 8070480.

The previous prime is 18897449. The next prime is 18897469. The reversal of 18897452 is 25479881.

It is a super-2 number, since 2×18897452² = 714227384184608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8249 + ... + 10287.

It is an arithmetic number, because the mean of its divisors is an integer number (1580320).

Almost surely, 2^18897452 is an apocalyptic number.

It is an amenable number.

18897452 is an abundant number, since it is smaller than the sum of its proper divisors (19030228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18897452 is a wasteful number, since it uses less digits than its factorization.

18897452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2379 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 18897452 is about 4347.1199661385. The cubic root of 18897452 is about 266.3592297235.

The spelling of 18897452 in words is "eighteen million, eight hundred ninety-seven thousand, four hundred fifty-two".