18036472 has 16 divisors (see below), whose sum is σ = 35598600. Its totient is φ = 8543520.

The previous prime is 18036457. The next prime is 18036509. The reversal of 18036472 is 27463081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59179 + ... + 59482.

Almost surely, 2^18036472 is an apocalyptic number.

It is an amenable number.

18036472 is a deficient number, since it is larger than the sum of its proper divisors (17562128).

18036472 is a wasteful number, since it uses less digits than its factorization.

18036472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118686 (or 118682 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 18036472 is about 4246.9367784322. The cubic root of 18036472 is about 262.2510268186.

It can be divided in two parts, 1803647 and 2, that added together give a square (1803649 = 1343²).

The spelling of 18036472 in words is "eighteen million, thirty-six thousand, four hundred seventy-two".