18016480 has 24 divisors (see below), whose sum is σ = 42564312. Its totient is φ = 7206528.

The previous prime is 18016477. The next prime is 18016483. The reversal of 18016480 is 8461081.

It is an interprime number because it is at equal distance from previous prime (18016477) and next prime (18016483).

It is a Smith number, since the sum of its digits (28) 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 (18016483) 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, 56142 + ... + 56461.

It is an arithmetic number, because the mean of its divisors is an integer number (1773513).

Almost surely, 2^18016480 is an apocalyptic number.

18016480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18016480 is an abundant number, since it is smaller than the sum of its proper divisors (24547832).

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

18016480 is a wasteful number, since it uses less digits than its factorization.

18016480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112618 (or 112610 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18016480 is about 4244.5824294034. The cubic root of 18016480 is about 262.1540961690.

It can be divided in two parts, 18016 and 480, that added together give a square (18496 = 136²).

The spelling of 18016480 in words is "eighteen million, sixteen thousand, four hundred eighty".