44047398420 has 144 divisors (see below), whose sum is σ = 138296750592. Its totient is φ = 11336060160.

The previous prime is 44047398323. The next prime is 44047398433. The reversal of 44047398420 is 2489374044.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2070759 + ... + 2091921.

Almost surely, 2^44047398420 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 44047398420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69148375296).

44047398420 is an abundant number, since it is smaller than the sum of its proper divisors (94249352172).

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

44047398420 is a wasteful number, since it uses less digits than its factorization.

44047398420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21582 (or 21577 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 44047398420 in words is "forty-four billion, forty-seven million, three hundred ninety-eight thousand, four hundred twenty".