44140313421 has 40 divisors (see below), whose sum is σ = 66576097280. Its totient is φ = 29142947232.

The previous prime is 44140313419. The next prime is 44140313423. The reversal of 44140313421 is 12431304144.

It is an interprime number because it is at equal distance from previous prime (44140313419) and next prime (44140313423).

It is not a de Polignac number, because 44140313421 - 2¹ = 44140313419 is a prime.

It is a super-2 number, since 2×44140313421² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44140313423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6240675 + ... + 6247743.

It is an arithmetic number, because the mean of its divisors is an integer number (1664402432).

Almost surely, 2^44140313421 is an apocalyptic number.

It is an amenable number.

44140313421 is a deficient number, since it is larger than the sum of its proper divisors (22435783859).

44140313421 is a wasteful number, since it uses less digits than its factorization.

44140313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7815 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 44140313421 its reverse (12431304144), we get a palindrome (56571617565).

The spelling of 44140313421 in words is "forty-four billion, one hundred forty million, three hundred thirteen thousand, four hundred twenty-one".