40402382705844 has 12 divisors (see below), whose sum is σ = 94272226313664. Its totient is φ = 13467460901944.

The previous prime is 40402382705843. The next prime is 40402382705873. The reversal of 40402382705844 is 44850728320404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402382705843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1683432612732 + ... + 1683432612755.

It is an arithmetic number, because the mean of its divisors is an integer number (7856018859472).

Almost surely, 2^{40402382705844} is an apocalyptic number.

It is an amenable number.

40402382705844 is an abundant number, since it is smaller than the sum of its proper divisors (53869843607820).

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

40402382705844 is a wasteful number, since it uses less digits than its factorization.

40402382705844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366865225494 (or 3366865225492 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 51.

The spelling of 40402382705844 in words is "forty trillion, four hundred two billion, three hundred eighty-two million, seven hundred five thousand, eight hundred forty-four".