442221504037330 has 16 divisors (see below), whose sum is σ = 796001158943064. Its totient is φ = 176888056798080.

The previous prime is 442221504037309. The next prime is 442221504037351. The reversal of 442221504037330 is 33730405122244.

It is an interprime number because it is at equal distance from previous prime (442221504037309) and next prime (442221504037351).

It can be written as a sum of positive squares in 4 ways, for example, as 405024520298841 + 37196983738489 = 20125221^2 + 6098933^2 .

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, 64684851 + ... + 71193910.

Almost surely, 2^{442221504037330} is an apocalyptic number.

442221504037330 is a deficient number, since it is larger than the sum of its proper divisors (353779654905734).

442221504037330 is a wasteful number, since it uses less digits than its factorization.

442221504037330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136204221.

The product of its (nonzero) digits is 483840, while the sum is 40.

Adding to 442221504037330 its reverse (33730405122244), we get a palindrome (475951909159574).

The spelling of 442221504037330 in words is "four hundred forty-two trillion, two hundred twenty-one billion, five hundred four million, thirty-seven thousand, three hundred thirty".