18274480 has 40 divisors (see below), whose sum is σ = 48559392. Its totient is φ = 6265344.

The previous prime is 18274463. The next prime is 18274513. The reversal of 18274480 is 8447281.

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

It is an unprimeable number.

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, 15757 + ... + 16876.

Almost surely, 2^18274480 is an apocalyptic number.

18274480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18274480 is an abundant number, since it is smaller than the sum of its proper divisors (30284912).

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

18274480 is a wasteful number, since it uses less digits than its factorization.

18274480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32653 (or 32647 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 18274480 is about 4274.8660797737. The cubic root of 18274480 is about 263.3995382686.

The spelling of 18274480 in words is "eighteen million, two hundred seventy-four thousand, four hundred eighty".