18768804 has 12 divisors (see below), whose sum is σ = 43793904. Its totient is φ = 6256264.

The previous prime is 18768803. The next prime is 18768809. The reversal of 18768804 is 40886781.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18768803) 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, 782022 + ... + 782045.

It is an arithmetic number, because the mean of its divisors is an integer number (3649492).

Almost surely, 2^18768804 is an apocalyptic number.

It is an amenable number.

18768804 is an abundant number, since it is smaller than the sum of its proper divisors (25025100).

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

18768804 is a wasteful number, since it uses less digits than its factorization.

18768804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564074 (or 1564072 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 18768804 is about 4332.2977736993. The cubic root of 18768804 is about 265.7534225424.

The spelling of 18768804 in words is "eighteen million, seven hundred sixty-eight thousand, eight hundred four".