40040000044 has 24 divisors (see below), whose sum is σ = 77196840336. Its totient is φ = 18019800000.

The previous prime is 40040000027. The next prime is 40040000069. The reversal of 40040000044 is 44000004004.

It is a junction number, because it is equal to n+sod(n) for n = 40039999982 and 40040000027.

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, 4500507 + ... + 4509394.

It is an arithmetic number, because the mean of its divisors is an integer number (3216535014).

Almost surely, 2^40040000044 is an apocalyptic number.

40040000044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40040000044 is a deficient number, since it is larger than the sum of its proper divisors (37156840292).

40040000044 is a wasteful number, since it uses less digits than its factorization.

40040000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010017 (or 9010015 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40040000044 its reverse (44000004004), we get a palindrome (84040004048).

The spelling of 40040000044 in words is "forty billion, forty million, forty-four", and thus it is an aban number and an eban number.