349940719 has 2 divisors, whose sum is σ = 349940720. Its totient is φ = 349940718.

The previous prime is 349940687. The next prime is 349940761. The reversal of 349940719 is 917049943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349940719 - 2⁵ = 349940687 is a prime.

It is a super-2 number, since 2×349940719² = 244917013628473922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349940779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174970359 + 174970360.

It is an arithmetic number, because the mean of its divisors is an integer number (174970360).

Almost surely, 2^349940719 is an apocalyptic number.

349940719 is a deficient number, since it is larger than the sum of its proper divisors (1).

349940719 is an equidigital number, since it uses as much as digits as its factorization.

349940719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 349940719 is about 18706.7025154087. The cubic root of 349940719 is about 704.6900832536.

The spelling of 349940719 in words is "three hundred forty-nine million, nine hundred forty thousand, seven hundred nineteen".