30572242 has 4 divisors (see below), whose sum is σ = 45858366. Its totient is φ = 15286120.

The previous prime is 30572237. The next prime is 30572261. The reversal of 30572242 is 24227503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 2401 = 5529^2 + 49^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7643059 + ... + 7643062.

Almost surely, 2^30572242 is an apocalyptic number.

30572242 is a deficient number, since it is larger than the sum of its proper divisors (15286124).

30572242 is a wasteful number, since it uses less digits than its factorization.

30572242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286123.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30572242 is about 5529.2171236080. The cubic root of 30572242 is about 312.6864747315.

Adding to 30572242 its reverse (24227503), we get a palindrome (54799745).

The spelling of 30572242 in words is "thirty million, five hundred seventy-two thousand, two hundred forty-two".