44138150838440 has 32 divisors (see below), whose sum is σ = 100294115033160. Its totient is φ = 17480455776000.

The previous prime is 44138150838437. The next prime is 44138150838451. The reversal of 44138150838440 is 4483805183144.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32763328853476 + 11374821984964 = 5723926^2 + 3372658^2 .

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, 5462638391 + ... + 5462646470.

Almost surely, 2^{44138150838440} is an apocalyptic number.

44138150838440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44138150838440 is an abundant number, since it is smaller than the sum of its proper divisors (56155964194720).

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

44138150838440 is a wasteful number, since it uses less digits than its factorization.

44138150838440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10925284973 (or 10925284969 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 53.

The spelling of 44138150838440 in words is "forty-four trillion, one hundred thirty-eight billion, one hundred fifty million, eight hundred thirty-eight thousand, four hundred forty".