349354469 has 4 divisors (see below), whose sum is σ = 360624000. Its totient is φ = 338084940.

The previous prime is 349354457. The next prime is 349354493. The reversal of 349354469 is 964453943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964453943 = 59 ⋅16346677.

It is a cyclic number.

It is not a de Polignac number, because 349354469 - 2²⁴ = 332577253 is a prime.

It is a super-2 number, since 2×349354469² = 244097090020543922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349354069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5634719 + ... + 5634780.

It is an arithmetic number, because the mean of its divisors is an integer number (90156000).

Almost surely, 2^349354469 is an apocalyptic number.

It is an amenable number.

349354469 is a deficient number, since it is larger than the sum of its proper divisors (11269531).

349354469 is a wasteful number, since it uses less digits than its factorization.

349354469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11269530.

The product of its digits is 1399680, while the sum is 47.

The square root of 349354469 is about 18691.0264298139. The cubic root of 349354469 is about 704.2963446820.

The spelling of 349354469 in words is "three hundred forty-nine million, three hundred fifty-four thousand, four hundred sixty-nine".