42244664624420 has 24 divisors (see below), whose sum is σ = 88993649969784. Its totient is φ = 16844560276736.

The previous prime is 42244664624353. The next prime is 42244664624429. The reversal of 42244664624420 is 2442646644224.

It can be written as a sum of positive squares in 4 ways, for example, as 2009975365696 + 40234689258724 = 1417736^2 + 6343082^2 .

It is a super-2 number, since 2×42244664624420² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42244664624429) 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, 3331591817 + ... + 3331604496.

It is an arithmetic number, because the mean of its divisors is an integer number (3708068748741).

Almost surely, 2^{42244664624420} is an apocalyptic number.

It is an amenable number.

42244664624420 is an abundant number, since it is smaller than the sum of its proper divisors (46748985345364).

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

42244664624420 is a wasteful number, since it uses less digits than its factorization.

42244664624420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6663196639 (or 6663196637 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 50.

The spelling of 42244664624420 in words is "forty-two trillion, two hundred forty-four billion, six hundred sixty-four million, six hundred twenty-four thousand, four hundred twenty".