42270564 has 48 divisors (see below), whose sum is σ = 113799168. Its totient is φ = 11961888.

The previous prime is 42270541. The next prime is 42270581. The reversal of 42270564 is 46507224.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6637 + ... + 11339.

It is an arithmetic number, because the mean of its divisors is an integer number (2370816).

Almost surely, 2^42270564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42270564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56899584).

42270564 is an abundant number, since it is smaller than the sum of its proper divisors (71528604).

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

42270564 is a wasteful number, since it uses less digits than its factorization.

42270564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 42270564 is about 6501.5816537209. The cubic root of 42270564 is about 348.3474861787.

Adding to 42270564 its reverse (46507224), we get a palindrome (88777788).

The spelling of 42270564 in words is "forty-two million, two hundred seventy thousand, five hundred sixty-four".