18148804 has 6 divisors (see below), whose sum is σ = 31760414. Its totient is φ = 9074400.

The previous prime is 18148799. The next prime is 18148811. The reversal of 18148804 is 40884181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9622404 + 8526400 = 3102^2 + 2920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18148804.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268597 + ... + 2268604.

Almost surely, 2^18148804 is an apocalyptic number.

It is an amenable number.

18148804 is a deficient number, since it is larger than the sum of its proper divisors (13611610).

18148804 is a wasteful number, since it uses less digits than its factorization.

18148804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537205 (or 4537203 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 18148804 is about 4260.1413122102. The cubic root of 18148804 is about 262.7943377158.

The spelling of 18148804 in words is "eighteen million, one hundred forty-eight thousand, eight hundred four".