18448976 has 40 divisors (see below), whose sum is σ = 43997184. Its totient is φ = 7297920.

The previous prime is 18448973. The next prime is 18449003. The reversal of 18448976 is 67984481.

It is a self number, because there is not a number n which added to its sum of digits gives 18448976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18448973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 7791.

Almost surely, 2^18448976 is an apocalyptic number.

18448976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18448976 is an abundant number, since it is smaller than the sum of its proper divisors (25548208).

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

18448976 is a wasteful number, since it uses less digits than its factorization.

18448976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699 (or 12693 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 18448976 is about 4295.2271185585. The cubic root of 18448976 is about 264.2352509724.

The spelling of 18448976 in words is "eighteen million, four hundred forty-eight thousand, nine hundred seventy-six".