42112564 has 24 divisors (see below), whose sum is σ = 81059328. Its totient is φ = 19021920.

The previous prime is 42112559. The next prime is 42112571. The reversal of 42112564 is 46521124.

It is a happy number.

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, 6172 + ... + 11059.

It is an arithmetic number, because the mean of its divisors is an integer number (3377472).

Almost surely, 2^42112564 is an apocalyptic number.

It is an amenable number.

42112564 is a deficient number, since it is larger than the sum of its proper divisors (38946764).

42112564 is a wasteful number, since it uses less digits than its factorization.

42112564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17295 (or 17293 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 42112564 is about 6489.4193885123. The cubic root of 42112564 is about 347.9129235608.

Adding to 42112564 its reverse (46521124), we get a palindrome (88633688).

The spelling of 42112564 in words is "forty-two million, one hundred twelve thousand, five hundred sixty-four".