30572442 has 12 divisors (see below), whose sum is σ = 66240330. Its totient is φ = 10190808.

The previous prime is 30572413. The next prime is 30572449. The reversal of 30572442 is 24427503.

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 2601 = 5529^2 + 51^2 .

It is not an unprimeable number, because it can be changed into a prime (30572449) 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, 849217 + ... + 849252.

Almost surely, 2^30572442 is an apocalyptic number.

30572442 is an abundant number, since it is smaller than the sum of its proper divisors (35667888).

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

30572442 is a wasteful number, since it uses less digits than its factorization.

30572442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698477 (or 1698474 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30572442 is about 5529.2352093214. The cubic root of 30572442 is about 312.6871565827.

Adding to 30572442 its reverse (24427503), we get a palindrome (54999945).

The spelling of 30572442 in words is "thirty million, five hundred seventy-two thousand, four hundred forty-two".