439426306345 has 16 divisors (see below), whose sum is σ = 567902195280. Its totient is φ = 324483312384.

The previous prime is 439426306343. The next prime is 439426306351. The reversal of 439426306345 is 543603624934.

It can be written as a sum of positive squares in 8 ways, for example, as 113674168336 + 325752138009 = 337156^2 + 570747^2 .

It is a cyclic number.

It is not a de Polignac number, because 439426306345 - 2¹ = 439426306343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (439426306343) 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, 1241511 + ... + 1555699.

It is an arithmetic number, because the mean of its divisors is an integer number (35493887205).

Almost surely, 2^439426306345 is an apocalyptic number.

It is an amenable number.

439426306345 is a deficient number, since it is larger than the sum of its proper divisors (128475888935).

439426306345 is a wasteful number, since it uses less digits than its factorization.

439426306345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335724.

The product of its (nonzero) digits is 5598720, while the sum is 49.

The spelling of 439426306345 in words is "four hundred thirty-nine billion, four hundred twenty-six million, three hundred six thousand, three hundred forty-five".