18047032 has 16 divisors (see below), whose sum is σ = 33989400. Its totient is φ = 8983200.

The previous prime is 18047027. The next prime is 18047039. The reversal of 18047032 is 23074081.

It is a junction number, because it is equal to n+sod(n) for n = 18046988 and 18047006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094 + ... + 6757.

Almost surely, 2^18047032 is an apocalyptic number.

It is an amenable number.

18047032 is a deficient number, since it is larger than the sum of its proper divisors (15942368).

18047032 is a wasteful number, since it uses less digits than its factorization.

18047032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086 (or 10082 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 18047032 is about 4248.1798455338. The cubic root of 18047032 is about 262.3021977747.

It can be divided in two parts, 1804 and 7032, that added together give a square (8836 = 94²).

The spelling of 18047032 in words is "eighteen million, forty-seven thousand, thirty-two".