40807913944 has 64 divisors (see below), whose sum is σ = 91287728640. Its totient is φ = 16721337600.

The previous prime is 40807913929. The next prime is 40807913957. The reversal of 40807913944 is 44931970804.

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, 3666532 + ... + 3677644.

It is an arithmetic number, because the mean of its divisors is an integer number (1426370760).

Almost surely, 2^40807913944 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 40807913944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45643864320).

40807913944 is an abundant number, since it is smaller than the sum of its proper divisors (50479814696).

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

40807913944 is a wasteful number, since it uses less digits than its factorization.

40807913944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14000 (or 13996 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 40807913944 in words is "forty billion, eight hundred seven million, nine hundred thirteen thousand, nine hundred forty-four".