18146472 has 32 divisors (see below), whose sum is σ = 45705600. Its totient is φ = 6003584.

The previous prime is 18146459. The next prime is 18146507. The reversal of 18146472 is 27464181.

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, 529 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (1428300).

Almost surely, 2^18146472 is an apocalyptic number.

18146472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18146472 is an abundant number, since it is smaller than the sum of its proper divisors (27559128).

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

18146472 is a wasteful number, since it uses less digits than its factorization.

18146472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665 (or 5661 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 18146472 is about 4259.8676035764. The cubic root of 18146472 is about 262.7830814617.

The spelling of 18146472 in words is "eighteen million, one hundred forty-six thousand, four hundred seventy-two".