18916064 has 12 divisors (see below), whose sum is σ = 37241064. Its totient is φ = 9458016.

The previous prime is 18916063. The next prime is 18916099. The reversal of 18916064 is 46061981.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18916063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 295532 + ... + 295595.

It is an arithmetic number, because the mean of its divisors is an integer number (3103422).

Almost surely, 2^18916064 is an apocalyptic number.

It is an amenable number.

18916064 is a deficient number, since it is larger than the sum of its proper divisors (18325000).

18916064 is an equidigital number, since it uses as much as digits as its factorization.

18916064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591137 (or 591129 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 18916064 is about 4349.2601669709. The cubic root of 18916064 is about 266.4466462941.

The spelling of 18916064 in words is "eighteen million, nine hundred sixteen thousand, sixty-four".