18016464 has 40 divisors (see below), whose sum is σ = 49282560. Its totient is φ = 5651968.

The previous prime is 18016433. The next prime is 18016469. The reversal of 18016464 is 46461081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016469) 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, 10224 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (1232064).

Almost surely, 2^18016464 is an apocalyptic number.

It is an amenable number.

18016464 is an abundant number, since it is smaller than the sum of its proper divisors (31266096).

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

18016464 is a wasteful number, since it uses less digits than its factorization.

18016464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22107 (or 22101 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 18016464 is about 4244.5805446475. The cubic root of 18016464 is about 262.1540185647.

The spelling of 18016464 in words is "eighteen million, sixteen thousand, four hundred sixty-four".