42240572 has 24 divisors (see below), whose sum is σ = 84887040. Its totient is φ = 18189360.

The previous prime is 42240547. The next prime is 42240587. The reversal of 42240572 is 27504224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24428 + ... + 26099.

It is an arithmetic number, because the mean of its divisors is an integer number (3536960).

Almost surely, 2^42240572 is an apocalyptic number.

It is an amenable number.

42240572 is an abundant number, since it is smaller than the sum of its proper divisors (42646468).

42240572 is a wasteful number, since it uses less digits than its factorization.

42240572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50561 (or 50559 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 42240572 is about 6499.2747287678. The cubic root of 42240572 is about 348.2650796626.

Adding to 42240572 its reverse (27504224), we get a palindrome (69744796).

The spelling of 42240572 in words is "forty-two million, two hundred forty thousand, five hundred seventy-two".