42644004448 has 24 divisors (see below), whose sum is σ = 86850398880. Its totient is φ = 20586760320.

The previous prime is 42644004409. The next prime is 42644004497. The reversal of 42644004448 is 84440044624.

It is a super-2 number, since 2×42644004448² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42644004448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22975368 + ... + 22977223.

It is an arithmetic number, because the mean of its divisors is an integer number (3618766620).

Almost surely, 2^42644004448 is an apocalyptic number.

It is an amenable number.

42644004448 is an abundant number, since it is smaller than the sum of its proper divisors (44206394432).

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

42644004448 is a wasteful number, since it uses less digits than its factorization.

42644004448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45952630 (or 45952622 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 42644004448 in words is "forty-two billion, six hundred forty-four million, four thousand, four hundred forty-eight".