18396476 has 12 divisors (see below), whose sum is σ = 36793008. Its totient is φ = 7884192.

The previous prime is 18396467. The next prime is 18396479. The reversal of 18396476 is 67469381.

18396476 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18396479) 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, 328481 + ... + 328536.

It is an arithmetic number, because the mean of its divisors is an integer number (3066084).

Almost surely, 2^18396476 is an apocalyptic number.

It is an amenable number.

18396476 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18396476 is a wasteful number, since it uses less digits than its factorization.

18396476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657028 (or 657026 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 18396476 is about 4289.1113298678. Note that the first 3 decimals coincide. The cubic root of 18396476 is about 263.9843692919.

The spelling of 18396476 in words is "eighteen million, three hundred ninety-six thousand, four hundred seventy-six".