442562306221 has 8 divisors (see below), whose sum is σ = 532405782080. Its totient is φ = 359373902688.

The previous prime is 442562306209. The next prime is 442562306227. The reversal of 442562306221 is 122603265244.

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 442562306221 - 2³⁵ = 408202567853 is a prime.

It is a super-2 number, since 2×442562306221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442562306227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663767936 + ... + 1663768201.

It is an arithmetic number, because the mean of its divisors is an integer number (66550722760).

Almost surely, 2^442562306221 is an apocalyptic number.

It is an amenable number.

442562306221 is a deficient number, since it is larger than the sum of its proper divisors (89843475859).

442562306221 is a wasteful number, since it uses less digits than its factorization.

442562306221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327536163.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 442562306221 in words is "four hundred forty-two billion, five hundred sixty-two million, three hundred six thousand, two hundred twenty-one".