18050724 has 18 divisors (see below), whose sum is σ = 45628310. Its totient is φ = 6016896.

The previous prime is 18050723. The next prime is 18050729. The reversal of 18050724 is 42705081.

It can be written as a sum of positive squares in only one way, i.e., 14745600 + 3305124 = 3840^2 + 1818^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (18050723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250669 + ... + 250740.

Almost surely, 2^18050724 is an apocalyptic number.

It is an amenable number.

18050724 is an abundant number, since it is smaller than the sum of its proper divisors (27577586).

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

18050724 is a wasteful number, since it uses less digits than its factorization.

18050724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501419 (or 501414 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18050724 is about 4248.6143623539. The cubic root of 18050724 is about 262.3200835168.

The spelling of 18050724 in words is "eighteen million, fifty thousand, seven hundred twenty-four".