30122572 has 12 divisors (see below), whose sum is σ = 55815480. Its totient is φ = 14175296.

The previous prime is 30122569. The next prime is 30122579. The reversal of 30122572 is 27522103.

It is not an unprimeable number, because it can be changed into a prime (30122579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221422 + ... + 221557.

It is an arithmetic number, because the mean of its divisors is an integer number (4651290).

Almost surely, 2^30122572 is an apocalyptic number.

It is an amenable number.

30122572 is a deficient number, since it is larger than the sum of its proper divisors (25692908).

30122572 is a wasteful number, since it uses less digits than its factorization.

30122572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443000 (or 442998 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30122572 is about 5488.4034108291. The cubic root of 30122572 is about 311.1458530174.

Adding to 30122572 its reverse (27522103), we get a palindrome (57644675).

The spelling of 30122572 in words is "thirty million, one hundred twenty-two thousand, five hundred seventy-two".