444213021361330 has 128 divisors (see below), whose sum is σ = 918336438835200. Its totient is φ = 153495443211264.

The previous prime is 444213021361327. The next prime is 444213021361331. The reversal of 444213021361330 is 33163120312444.

It is a super-2 number, since 2×444213021361330² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 444213021361330.

It is not an unprimeable number, because it can be changed into a prime (444213021361331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30631591 + ... + 42740149.

It is an arithmetic number, because the mean of its divisors is an integer number (7174503428400).

Almost surely, 2^{444213021361330} is an apocalyptic number.

444213021361330 is an abundant number, since it is smaller than the sum of its proper divisors (474123417473870).

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

444213021361330 is a wasteful number, since it uses less digits than its factorization.

444213021361330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12108908.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 444213021361330 its reverse (33163120312444), we get a palindrome (477376141673774).

The spelling of 444213021361330 in words is "four hundred forty-four trillion, two hundred thirteen billion, twenty-one million, three hundred sixty-one thousand, three hundred thirty".