442320648365 has 8 divisors (see below), whose sum is σ = 530803541400. Its totient is φ = 353844009792.

The previous prime is 442320648359. The next prime is 442320648391. The reversal of 442320648365 is 563846023244.

It can be written as a sum of positive squares in 4 ways, for example, as 7181206564 + 435139441801 = 84742^2 + 659651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442320648365 - 2¹⁴ = 442320631981 is a prime.

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, 1406594 + ... + 1692083.

It is an arithmetic number, because the mean of its divisors is an integer number (66350442675).

Almost surely, 2^442320648365 is an apocalyptic number.

It is an amenable number.

442320648365 is a deficient number, since it is larger than the sum of its proper divisors (88482893035).

442320648365 is a wasteful number, since it uses less digits than its factorization.

442320648365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127231.

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 442320648365 in words is "four hundred forty-two billion, three hundred twenty million, six hundred forty-eight thousand, three hundred sixty-five".