344441639 has 2 divisors, whose sum is σ = 344441640. Its totient is φ = 344441638.

The previous prime is 344441627. The next prime is 344441663. The reversal of 344441639 is 936144443.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 344441639 - 2²⁴ = 327664423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344441039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172220819 + 172220820.

It is an arithmetic number, because the mean of its divisors is an integer number (172220820).

Almost surely, 2^344441639 is an apocalyptic number.

344441639 is a deficient number, since it is larger than the sum of its proper divisors (1).

344441639 is an equidigital number, since it uses as much as digits as its factorization.

344441639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The square root of 344441639 is about 18559.1389617083. The cubic root of 344441639 is about 700.9793360223.

The spelling of 344441639 in words is "three hundred forty-four million, four hundred forty-one thousand, six hundred thirty-nine".