18033480 has 48 divisors (see below), whose sum is σ = 58609980. Its totient is φ = 4808832.

The previous prime is 18033479. The next prime is 18033497. The reversal of 18033480 is 8433081.

18033480 is a `hidden beast` number, since 180 + 3 + 3 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15729156 + 2304324 = 3966^2 + 1518^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24687 + ... + 25406.

Almost surely, 2^18033480 is an apocalyptic number.

18033480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18033480 is an abundant number, since it is smaller than the sum of its proper divisors (40576500).

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

18033480 is a wasteful number, since it uses less digits than its factorization.

18033480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50110 (or 50103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 18033480 is about 4246.5845099327. The cubic root of 18033480 is about 262.2365247500.

The spelling of 18033480 in words is "eighteen million, thirty-three thousand, four hundred eighty".