40944011580 has 36 divisors (see below), whose sum is σ = 124196835672. Its totient is φ = 10918403040.

The previous prime is 40944011579. The next prime is 40944011621. The reversal of 40944011580 is 8511044904.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113733186 + ... + 113733545.

It is an arithmetic number, because the mean of its divisors is an integer number (3449912102).

Almost surely, 2^40944011580 is an apocalyptic number.

It is an amenable number.

40944011580 is an abundant number, since it is smaller than the sum of its proper divisors (83252824092).

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

40944011580 is a wasteful number, since it uses less digits than its factorization.

40944011580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227466746 (or 227466741 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 40944011580 in words is "forty billion, nine hundred forty-four million, eleven thousand, five hundred eighty".