30130572 has 48 divisors (see below), whose sum is σ = 73608192. Its totient is φ = 9582720.

The previous prime is 30130571. The next prime is 30130591. The reversal of 30130572 is 27503103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22473 + ... + 23775.

It is an arithmetic number, because the mean of its divisors is an integer number (1533504).

Almost surely, 2^30130572 is an apocalyptic number.

It is an amenable number.

30130572 is an abundant number, since it is smaller than the sum of its proper divisors (43477620).

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

30130572 is a wasteful number, since it uses less digits than its factorization.

30130572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30130572 is about 5489.1321718465. The cubic root of 30130572 is about 311.1733954475.

Adding to 30130572 its reverse (27503103), we get a palindrome (57633675).

The spelling of 30130572 in words is "thirty million, one hundred thirty thousand, five hundred seventy-two".