18310804 has 6 divisors (see below), whose sum is σ = 32043914. Its totient is φ = 9155400.

The previous prime is 18310757. The next prime is 18310807. The reversal of 18310804 is 40801381.

It can be written as a sum of positive squares in only one way, i.e., 14516100 + 3794704 = 3810^2 + 1948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18310807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2288847 + ... + 2288854.

Almost surely, 2^18310804 is an apocalyptic number.

It is an amenable number.

18310804 is a deficient number, since it is larger than the sum of its proper divisors (13733110).

18310804 is a wasteful number, since it uses less digits than its factorization.

18310804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577705 (or 4577703 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18310804 is about 4279.1125248117. The cubic root of 18310804 is about 263.5739416368.

The spelling of 18310804 in words is "eighteen million, three hundred ten thousand, eight hundred four".