40840044444 has 36 divisors (see below), whose sum is σ = 103241010600. Its totient is φ = 13612497120.

The previous prime is 40840044439. The next prime is 40840044451. The reversal of 40840044444 is 44444004804.

It is a happy number.

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 junction number, because it is equal to n+sod(n) for n = 40840044399 and 40840044408.

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, 854082 + ... + 900630.

It is an arithmetic number, because the mean of its divisors is an integer number (2867805850).

Almost surely, 2^40840044444 is an apocalyptic number.

It is an amenable number.

40840044444 is an abundant number, since it is smaller than the sum of its proper divisors (62400966156).

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

40840044444 is a wasteful number, since it uses less digits than its factorization.

40840044444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70930 (or 70925 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 36.

The spelling of 40840044444 in words is "forty billion, eight hundred forty million, forty-four thousand, four hundred forty-four".