349244431 has 2 divisors, whose sum is σ = 349244432. Its totient is φ = 349244430.

The previous prime is 349244417. The next prime is 349244449. The reversal of 349244431 is 134442943.

It is a weak prime.

It is an emirp because it is prime and its reverse (134442943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349244431 - 2²⁵ = 315689999 is a prime.

It is a super-2 number, since 2×349244431² = 243943345169027522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349244411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174622215 + 174622216.

It is an arithmetic number, because the mean of its divisors is an integer number (174622216).

Almost surely, 2^349244431 is an apocalyptic number.

349244431 is a deficient number, since it is larger than the sum of its proper divisors (1).

349244431 is an equidigital number, since it uses as much as digits as its factorization.

349244431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 349244431 is about 18688.0825929254. The cubic root of 349244431 is about 704.2223916188. Note that the first 3 decimals are identical.

The spelling of 349244431 in words is "three hundred forty-nine million, two hundred forty-four thousand, four hundred thirty-one".