40404812844 has 48 divisors (see below), whose sum is σ = 103336119936. Its totient is φ = 12185846400.

The previous prime is 40404812831. The next prime is 40404812887. The reversal of 40404812844 is 44821840404.

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, 697497 + ... + 753200.

It is an arithmetic number, because the mean of its divisors is an integer number (2152835832).

Almost surely, 2^40404812844 is an apocalyptic number.

40404812844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40404812844 is an abundant number, since it is smaller than the sum of its proper divisors (62931307092).

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

40404812844 is a wasteful number, since it uses less digits than its factorization.

40404812844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450926 (or 1450924 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 39.

The spelling of 40404812844 in words is "forty billion, four hundred four million, eight hundred twelve thousand, eight hundred forty-four".