440307926139 has 4 divisors (see below), whose sum is σ = 587077234856. Its totient is φ = 293538617424.

The previous prime is 440307926099. The next prime is 440307926167. The reversal of 440307926139 is 931629703044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 440307926139 - 2¹⁵ = 440307893371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440307926039) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 73384654354 + ... + 73384654359.

It is an arithmetic number, because the mean of its divisors is an integer number (146769308714).

Almost surely, 2^440307926139 is an apocalyptic number.

440307926139 is a deficient number, since it is larger than the sum of its proper divisors (146769308717).

440307926139 is a wasteful number, since it uses less digits than its factorization.

440307926139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146769308716.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 440307926139 in words is "four hundred forty billion, three hundred seven million, nine hundred twenty-six thousand, one hundred thirty-nine".