18070432 has 12 divisors (see below), whose sum is σ = 35576226. Its totient is φ = 9035200.

The previous prime is 18070411. The next prime is 18070477. The reversal of 18070432 is 23407081.

It can be written as a sum of positive squares in only one way, i.e., 17943696 + 126736 = 4236^2 + 356^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18070397 and 18070406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282319 + ... + 282382.

Almost surely, 2^18070432 is an apocalyptic number.

It is an amenable number.

18070432 is a deficient number, since it is larger than the sum of its proper divisors (17505794).

18070432 is an equidigital number, since it uses as much as digits as its factorization.

18070432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564711 (or 564703 counting only the distinct ones).

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

The square root of 18070432 is about 4250.9330740439. The cubic root of 18070432 is about 262.4155168793.

The spelling of 18070432 in words is "eighteen million, seventy thousand, four hundred thirty-two".