40444134040 has 16 divisors (see below), whose sum is σ = 90999301680. Its totient is φ = 16177653600.

The previous prime is 40444134001. The next prime is 40444134109. The reversal of 40444134040 is 4043144404.

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, 505551636 + ... + 505551715.

It is an arithmetic number, because the mean of its divisors is an integer number (5687456355).

Almost surely, 2^40444134040 is an apocalyptic number.

40444134040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40444134040 is an abundant number, since it is smaller than the sum of its proper divisors (50555167640).

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

40444134040 is a wasteful number, since it uses less digits than its factorization.

40444134040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011103362 (or 1011103358 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40444134040 its reverse (4043144404), we get a palindrome (44487278444).

The spelling of 40444134040 in words is "forty billion, four hundred forty-four million, one hundred thirty-four thousand, forty".