18474488 has 16 divisors (see below), whose sum is σ = 34685280. Its totient is φ = 9225088.

The previous prime is 18474487. The next prime is 18474503. The reversal of 18474488 is 88447481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18474487) 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, 11120 + ... + 12672.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 2^18474488 is an apocalyptic number.

It is an amenable number.

18474488 is a deficient number, since it is larger than the sum of its proper divisors (16210792).

18474488 is a wasteful number, since it uses less digits than its factorization.

18474488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3042 counting only the distinct ones).

The product of its digits is 229376, while the sum is 44.

The square root of 18474488 is about 4298.1959006076. The cubic root of 18474488 is about 264.3569933170.

The spelling of 18474488 in words is "eighteen million, four hundred seventy-four thousand, four hundred eighty-eight".