442221885688310 has 64 divisors (see below), whose sum is σ = 979694600113152. Its totient is φ = 139955503453056.

The previous prime is 442221885688273. The next prime is 442221885688357. The reversal of 442221885688310 is 13886588122244.

It is a super-2 number, since 2×442221885688310² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424944437 + ... + 425983823.

It is an arithmetic number, because the mean of its divisors is an integer number (15307728126768).

Almost surely, 2^{442221885688310} is an apocalyptic number.

442221885688310 is an abundant number, since it is smaller than the sum of its proper divisors (537472714424842).

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

442221885688310 is a wasteful number, since it uses less digits than its factorization.

442221885688310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506957.

The product of its (nonzero) digits is 47185920, while the sum is 62.

The spelling of 442221885688310 in words is "four hundred forty-two trillion, two hundred twenty-one billion, eight hundred eighty-five million, six hundred eighty-eight thousand, three hundred ten".