344215939 has 2 divisors, whose sum is σ = 344215940. Its totient is φ = 344215938.

The previous prime is 344215931. The next prime is 344215943. The reversal of 344215939 is 939512443.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344215939 - 2³ = 344215931 is a prime.

It is a super-2 number, since 2×344215939² = 236969225323303442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (344215931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172107969 + 172107970.

It is an arithmetic number, because the mean of its divisors is an integer number (172107970).

Almost surely, 2^344215939 is an apocalyptic number.

344215939 is a deficient number, since it is larger than the sum of its proper divisors (1).

344215939 is an equidigital number, since it uses as much as digits as its factorization.

344215939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 344215939 is about 18553.0574030266. The cubic root of 344215939 is about 700.8261938665.

The spelling of 344215939 in words is "three hundred forty-four million, two hundred fifteen thousand, nine hundred thirty-nine".