18804812 has 24 divisors (see below), whose sum is σ = 35875056. Its totient is φ = 8572608.

The previous prime is 18804811. The next prime is 18804827. The reversal of 18804812 is 21840881.

It is not an unprimeable number, because it can be changed into a prime (18804811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (1494794).

Almost surely, 2^18804812 is an apocalyptic number.

It is an amenable number.

18804812 is a deficient number, since it is larger than the sum of its proper divisors (17070244).

18804812 is a wasteful number, since it uses less digits than its factorization.

18804812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 18804812 is about 4336.4515447541. The cubic root of 18804812 is about 265.9232635227.

The spelling of 18804812 in words is "eighteen million, eight hundred four thousand, eight hundred twelve".