18449264 has 20 divisors (see below), whose sum is σ = 35841456. Its totient is φ = 9199872.

The previous prime is 18449251. The next prime is 18449269. The reversal of 18449264 is 46294481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18449269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5597 + ... + 8259.

Almost surely, 2^18449264 is an apocalyptic number.

It is an amenable number.

18449264 is a deficient number, since it is larger than the sum of its proper divisors (17392192).

18449264 is a wasteful number, since it uses less digits than its factorization.

18449264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104 (or 3098 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 18449264 is about 4295.2606440122. The cubic root of 18449264 is about 264.2366259241.

The spelling of 18449264 in words is "eighteen million, four hundred forty-nine thousand, two hundred sixty-four".