18464748 has 24 divisors (see below), whose sum is σ = 43158528. Its totient is φ = 6144336.

The previous prime is 18464717. The next prime is 18464767. The reversal of 18464748 is 84746481.

It is a happy number.

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, 9465 + ... + 11247.

It is an arithmetic number, because the mean of its divisors is an integer number (1798272).

Almost surely, 2^18464748 is an apocalyptic number.

It is an amenable number.

18464748 is an abundant number, since it is smaller than the sum of its proper divisors (24693780).

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

18464748 is a wasteful number, since it uses less digits than its factorization.

18464748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653 (or 2651 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 18464748 is about 4297.0627177178. The cubic root of 18464748 is about 264.3105276226.

The spelling of 18464748 in words is "eighteen million, four hundred sixty-four thousand, seven hundred forty-eight".