40242044444 has 12 divisors (see below), whose sum is σ = 80484088944. Its totient is φ = 17246590464.

The previous prime is 40242044341. The next prime is 40242044537. The reversal of 40242044444 is 44444024204.

40242044444 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 40242044444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718607909 + ... + 718607964.

It is an arithmetic number, because the mean of its divisors is an integer number (6707007412).

Almost surely, 2^40242044444 is an apocalyptic number.

It is an amenable number.

40242044444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40242044444 is a wasteful number, since it uses less digits than its factorization.

40242044444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437215884 (or 1437215882 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40242044444 its reverse (44444024204), we get a palindrome (84686068648).

The spelling of 40242044444 in words is "forty billion, two hundred forty-two million, forty-four thousand, four hundred forty-four".