74126564 has 6 divisors (see below), whose sum is σ = 129721494. Its totient is φ = 37063280.

The previous prime is 74126561. The next prime is 74126593. The reversal of 74126564 is 46562147.

It can be written as a sum of positive squares in only one way, i.e., 74097664 + 28900 = 8608^2 + 170^2 .

It is not an unprimeable number, because it can be changed into a prime (74126561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9265817 + ... + 9265824.

It is an arithmetic number, because the mean of its divisors is an integer number (21620249).

Almost surely, 2^74126564 is an apocalyptic number.

It is an amenable number.

74126564 is a deficient number, since it is larger than the sum of its proper divisors (55594930).

74126564 is a wasteful number, since it uses less digits than its factorization.

74126564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18531645 (or 18531643 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 74126564 is about 8609.6785073544. The cubic root of 74126564 is about 420.0728596199.

The spelling of 74126564 in words is "seventy-four million, one hundred twenty-six thousand, five hundred sixty-four".