18082472 has 8 divisors (see below), whose sum is σ = 33904650. Its totient is φ = 9041232.

The previous prime is 18082453. The next prime is 18082481. The reversal of 18082472 is 27428081.

It can be written as a sum of positive squares in only one way, i.e., 16859236 + 1223236 = 4106^2 + 1106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130147 + ... + 1130162.

Almost surely, 2^18082472 is an apocalyptic number.

It is an amenable number.

18082472 is a deficient number, since it is larger than the sum of its proper divisors (15822178).

18082472 is a wasteful number, since it uses less digits than its factorization.

18082472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260315 (or 2260311 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 18082472 is about 4252.3489979069. The cubic root of 18082472 is about 262.4737848348.

The spelling of 18082472 in words is "eighteen million, eighty-two thousand, four hundred seventy-two".