40444422004 has 24 divisors (see below), whose sum is σ = 81120636800. Its totient is φ = 17283653856.

The previous prime is 40444421981. The next prime is 40444422041. The reversal of 40444422004 is 40022444404.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059632 + ... + 2079175.

Almost surely, 2^40444422004 is an apocalyptic number.

It is an amenable number.

40444422004 is an abundant number, since it is smaller than the sum of its proper divisors (40676214796).

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

40444422004 is a wasteful number, since it uses less digits than its factorization.

40444422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139167 (or 4139165 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40444422004 its reverse (40022444404), we get a palindrome (80466866408).

The spelling of 40444422004 in words is "forty billion, four hundred forty-four million, four hundred twenty-two thousand, four".