18416080 has 40 divisors (see below), whose sum is σ = 43059744. Its totient is φ = 7324800.

The previous prime is 18416071. The next prime is 18416081. The reversal of 18416080 is 8061481.

It is a tau number, because it is divible by the number of its divisors (40).

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 (18416081) 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, 16335 + ... + 17425.

Almost surely, 2^18416080 is an apocalyptic number.

18416080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18416080 is an abundant number, since it is smaller than the sum of its proper divisors (24643664).

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

18416080 is a wasteful number, since it uses less digits than its factorization.

18416080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1309 counting only the distinct ones).

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

The square root of 18416080 is about 4291.3960432475. The cubic root of 18416080 is about 264.0781066719.

It can be divided in two parts, 1841 and 6080, that added together give a square (7921 = 89²).

The spelling of 18416080 in words is "eighteen million, four hundred sixteen thousand, eighty".