18887452 has 12 divisors (see below), whose sum is σ = 33394480. Its totient is φ = 9346176.

The previous prime is 18887447. The next prime is 18887461. The reversal of 18887452 is 25478881.

It is a super-3 number, since 3×18887452³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18887399 and 18887408.

It is a congruent number.

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, 23952 + ... + 24727.

Almost surely, 2^18887452 is an apocalyptic number.

It is an amenable number.

18887452 is a deficient number, since it is larger than the sum of its proper divisors (14507028).

18887452 is a wasteful number, since it uses less digits than its factorization.

18887452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48780 (or 48778 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 18887452 is about 4345.9696271373. The cubic root of 18887452 is about 266.3122381631.

The spelling of 18887452 in words is "eighteen million, eight hundred eighty-seven thousand, four hundred fifty-two".