30220572 has 24 divisors (see below), whose sum is σ = 72155776. Its totient is φ = 9839088.

The previous prime is 30220571. The next prime is 30220591. The reversal of 30220572 is 27502203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28768 + ... + 29799.

Almost surely, 2^30220572 is an apocalyptic number.

It is an amenable number.

30220572 is an abundant number, since it is smaller than the sum of its proper divisors (41935204).

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

30220572 is a wasteful number, since it uses less digits than its factorization.

30220572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58617 (or 58615 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 30220572 is about 5497.3240763120. The cubic root of 30220572 is about 311.4829123896.

Adding to 30220572 its reverse (27502203), we get a palindrome (57722775).

The spelling of 30220572 in words is "thirty million, two hundred twenty thousand, five hundred seventy-two".