44000440040 has 64 divisors (see below), whose sum is σ = 99637488720. Its totient is φ = 17487360000.

The previous prime is 44000440039. The next prime is 44000440051. The reversal of 44000440040 is 4004400044.

It can be written as a sum of positive squares in 8 ways, for example, as 32985097924 + 11015342116 = 181618^2 + 104954^2 .

It is a super-3 number, since 3×44000440040³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 44000439994 and 44000440021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4439090 + ... + 4448990.

Almost surely, 2^44000440040 is an apocalyptic number.

44000440040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44000440040 is an abundant number, since it is smaller than the sum of its proper divisors (55637048680).

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

44000440040 is a wasteful number, since it uses less digits than its factorization.

44000440040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10614 (or 10610 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44000440040 its reverse (4004400044), we get a palindrome (48004840084).

The spelling of 44000440040 in words is "forty-four billion, four hundred forty thousand, forty".