42220572 has 24 divisors (see below), whose sum is σ = 99866256. Its totient is φ = 13880448.

The previous prime is 42220567. The next prime is 42220579. The reversal of 42220572 is 27502224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42220579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23223 + ... + 24974.

It is an arithmetic number, because the mean of its divisors is an integer number (4161094).

Almost surely, 2^42220572 is an apocalyptic number.

It is an amenable number.

42220572 is an abundant number, since it is smaller than the sum of its proper divisors (57645684).

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

42220572 is a wasteful number, since it uses less digits than its factorization.

42220572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48277 (or 48275 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 42220572 is about 6497.7359133778. The cubic root of 42220572 is about 348.2101056502.

Adding to 42220572 its reverse (27502224), we get a palindrome (69722796).

The spelling of 42220572 in words is "forty-two million, two hundred twenty thousand, five hundred seventy-two".