18530756 has 6 divisors (see below), whose sum is σ = 32428830. Its totient is φ = 9265376.

The previous prime is 18530753. The next prime is 18530767. The reversal of 18530756 is 65703581.

It can be written as a sum of positive squares in only one way, i.e., 16128256 + 2402500 = 4016^2 + 1550^2 .

It is not an unprimeable number, because it can be changed into a prime (18530753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2316341 + ... + 2316348.

It is an arithmetic number, because the mean of its divisors is an integer number (5404805).

Almost surely, 2^18530756 is an apocalyptic number.

It is an amenable number.

18530756 is a deficient number, since it is larger than the sum of its proper divisors (13898074).

18530756 is a wasteful number, since it uses less digits than its factorization.

18530756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632693 (or 4632691 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 18530756 is about 4304.7364611553. The cubic root of 18530756 is about 264.6251065353.

The spelling of 18530756 in words is "eighteen million, five hundred thirty thousand, seven hundred fifty-six".