18049004 has 12 divisors (see below), whose sum is σ = 31615584. Its totient is φ = 9015984.

The previous prime is 18048977. The next prime is 18049021. The reversal of 18049004 is 40094081.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6749 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (2634632).

Almost surely, 2^18049004 is an apocalyptic number.

It is an amenable number.

18049004 is a deficient number, since it is larger than the sum of its proper divisors (13566580).

18049004 is a wasteful number, since it uses less digits than its factorization.

18049004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 18049004 is about 4248.4119385954. The cubic root of 18049004 is about 262.3117513510.

The spelling of 18049004 in words is "eighteen million, forty-nine thousand, four".