349303439 has 2 divisors, whose sum is σ = 349303440. Its totient is φ = 349303438.

The previous prime is 349303433. The next prime is 349303447. The reversal of 349303439 is 934303943.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (934303943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349303439 - 2⁸ = 349303183 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 (349303433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174651719 + 174651720.

It is an arithmetic number, because the mean of its divisors is an integer number (174651720).

Almost surely, 2^349303439 is an apocalyptic number.

349303439 is a deficient number, since it is larger than the sum of its proper divisors (1).

349303439 is an equidigital number, since it uses as much as digits as its factorization.

349303439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 38.

The square root of 349303439 is about 18689.6612863904. The cubic root of 349303439 is about 704.2620509625.

The spelling of 349303439 in words is "three hundred forty-nine million, three hundred three thousand, four hundred thirty-nine".