18412480 has 56 divisors (see below), whose sum is σ = 44238672. Its totient is φ = 7299072.

The previous prime is 18412447. The next prime is 18412483. The reversal of 18412480 is 8421481.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18412483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51984 + ... + 52336.

Almost surely, 2^18412480 is an apocalyptic number.

18412480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18412480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22119336).

18412480 is an abundant number, since it is smaller than the sum of its proper divisors (25826192).

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

18412480 is a wasteful number, since it uses less digits than its factorization.

18412480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 18412480 is about 4290.9765788221. The cubic root of 18412480 is about 264.0608981031.

Subtracting from 18412480 its reverse (8421481), we obtain a palindrome (9990999).

The spelling of 18412480 in words is "eighteen million, four hundred twelve thousand, four hundred eighty".