40044373344 has 144 divisors (see below), whose sum is σ = 115236327024. Its totient is φ = 13189248000.

The previous prime is 40044373319. The next prime is 40044373351. The reversal of 40044373344 is 44337344004.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40044373299 and 40044373308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18702514 + ... + 18704654.

It is an arithmetic number, because the mean of its divisors is an integer number (800252271).

Almost surely, 2^40044373344 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 40044373344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57618163512).

40044373344 is an abundant number, since it is smaller than the sum of its proper divisors (75191953680).

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

40044373344 is a wasteful number, since it uses less digits than its factorization.

40044373344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901 (or 2890 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 36.

The spelling of 40044373344 in words is "forty billion, forty-four million, three hundred seventy-three thousand, three hundred forty-four".