349353439 has 2 divisors, whose sum is σ = 349353440. Its totient is φ = 349353438.

The previous prime is 349353427. The next prime is 349353523. The reversal of 349353439 is 934353943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349353439 - 2¹¹ = 349351391 is a prime.

It is a super-2 number, since 2×349353439² = 244095650682253442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 349353395 and 349353404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349353419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174676719 + 174676720.

It is an arithmetic number, because the mean of its divisors is an integer number (174676720).

Almost surely, 2^349353439 is an apocalyptic number.

349353439 is a deficient number, since it is larger than the sum of its proper divisors (1).

349353439 is an equidigital number, since it uses as much as digits as its factorization.

349353439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 43.

The square root of 349353439 is about 18690.9988764646. The cubic root of 349353439 is about 704.2956525236.

The spelling of 349353439 in words is "three hundred forty-nine million, three hundred fifty-three thousand, four hundred thirty-nine".