44400436464 has 80 divisors (see below), whose sum is σ = 118732400640. Its totient is φ = 14282653440.

The previous prime is 44400436441. The next prime is 44400436481. The reversal of 44400436464 is 46463400444.

44400436464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492634 + ... + 575750.

It is an arithmetic number, because the mean of its divisors is an integer number (1484155008).

Almost surely, 2^44400436464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44400436464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59366200320).

44400436464 is an abundant number, since it is smaller than the sum of its proper divisors (74331964176).

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

44400436464 is a wasteful number, since it uses less digits than its factorization.

44400436464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83518 (or 83512 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 39.

The spelling of 44400436464 in words is "forty-four billion, four hundred million, four hundred thirty-six thousand, four hundred sixty-four".