30338530 has 16 divisors (see below), whose sum is σ = 54706104. Its totient is φ = 12113920.

The previous prime is 30338527. The next prime is 30338537. The reversal of 30338530 is 3583303.

It can be written as a sum of positive squares in 4 ways, for example, as 25633969 + 4704561 = 5063^2 + 2169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30338495 and 30338504.

It is not an unprimeable number, because it can be changed into a prime (30338537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4044 + ... + 8776.

Almost surely, 2^30338530 is an apocalyptic number.

30338530 is a deficient number, since it is larger than the sum of its proper divisors (24367574).

30338530 is a wasteful number, since it uses less digits than its factorization.

30338530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 30338530 is about 5508.0423019436. The cubic root of 30338530 is about 311.8876499381.

The spelling of 30338530 in words is "thirty million, three hundred thirty-eight thousand, five hundred thirty".