18914808 has 32 divisors (see below), whose sum is σ = 51586560. Its totient is φ = 5731680.

The previous prime is 18914803. The next prime is 18914827. The reversal of 18914808 is 80841981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18914801) 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, 35560 + ... + 36087.

It is an arithmetic number, because the mean of its divisors is an integer number (1612080).

Almost surely, 2^18914808 is an apocalyptic number.

It is an amenable number.

18914808 is an abundant number, since it is smaller than the sum of its proper divisors (32671752).

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

18914808 is a wasteful number, since it uses less digits than its factorization.

18914808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71667 (or 71663 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 18914808 is about 4349.1157722001. The cubic root of 18914808 is about 266.4407489362.

The spelling of 18914808 in words is "eighteen million, nine hundred fourteen thousand, eight hundred eight".