40440400044 has 48 divisors (see below), whose sum is σ = 102993158016. Its totient is φ = 12248243200.

The previous prime is 40440400043. The next prime is 40440400073. The reversal of 40440400044 is 44000404404.

40440400044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40440399987 and 40440400023.

It is not an unprimeable number, because it can be changed into a prime (40440400043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175564 + ... + 334220.

It is an arithmetic number, because the mean of its divisors is an integer number (2145690792).

Almost surely, 2^40440400044 is an apocalyptic number.

40440400044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40440400044 is an abundant number, since it is smaller than the sum of its proper divisors (62552757972).

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

40440400044 is a wasteful number, since it uses less digits than its factorization.

40440400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160606 (or 160604 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40440400044 its reverse (44000404404), we get a palindrome (84440804448).

The spelling of 40440400044 in words is "forty billion, four hundred forty million, four hundred thousand, forty-four".