18396004 has 24 divisors (see below), whose sum is σ = 35356608. Its totient is φ = 8305440.

The previous prime is 18395999. The next prime is 18396011. The reversal of 18396004 is 40069381.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5577 + ... + 8239.

It is an arithmetic number, because the mean of its divisors is an integer number (1473192).

Almost surely, 2^18396004 is an apocalyptic number.

It is an amenable number.

18396004 is a deficient number, since it is larger than the sum of its proper divisors (16960604).

18396004 is a wasteful number, since it uses less digits than its factorization.

18396004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 18396004 is about 4289.0563064618. The cubic root of 18396004 is about 263.9821115825.

The spelling of 18396004 in words is "eighteen million, three hundred ninety-six thousand, four".