18449552 has 20 divisors (see below), whose sum is σ = 38996016. Its totient is φ = 8386080.

The previous prime is 18449533. The next prime is 18449567. The reversal of 18449552 is 25594481.

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, 52238 + ... + 52589.

Almost surely, 2^18449552 is an apocalyptic number.

It is an amenable number.

18449552 is an abundant number, since it is smaller than the sum of its proper divisors (20546464).

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

18449552 is a wasteful number, since it uses less digits than its factorization.

18449552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104846 (or 104840 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 18449552 is about 4295.2941692042. The cubic root of 18449552 is about 264.2380008616.

Subtracting 18449552 from its reverse (25594481), we obtain a square (7144929 = 2673²).

The spelling of 18449552 in words is "eighteen million, four hundred forty-nine thousand, five hundred fifty-two".