442652564 has 12 divisors (see below), whose sum is σ = 793535988. Its totient is φ = 215928000.

The previous prime is 442652543. The next prime is 442652593. The reversal of 442652564 is 465256244.

It can be written as a sum of positive squares in 2 ways, for example, as 206784400 + 235868164 = 14380^2 + 15358^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349387 + ... + 1349714.

It is an arithmetic number, because the mean of its divisors is an integer number (66127999).

Almost surely, 2^442652564 is an apocalyptic number.

It is an amenable number.

442652564 is a deficient number, since it is larger than the sum of its proper divisors (350883424).

442652564 is a wasteful number, since it uses less digits than its factorization.

442652564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699146 (or 2699144 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 442652564 is about 21039.3099696734. The cubic root of 442652564 is about 762.1158514321.

The spelling of 442652564 in words is "four hundred forty-two million, six hundred fifty-two thousand, five hundred sixty-four".