349204317 has 32 divisors (see below), whose sum is σ = 581627904. Its totient is φ = 181051200.

The previous prime is 349204309. The next prime is 349204319. The reversal of 349204317 is 713402943.

It is not a de Polignac number, because 349204317 - 2³ = 349204309 is a prime.

It is a super-2 number, since 2×349204317² = 243887310022872978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349204319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151548 + ... + 153834.

It is an arithmetic number, because the mean of its divisors is an integer number (18175872).

Almost surely, 2^349204317 is an apocalyptic number.

It is an amenable number.

349204317 is a deficient number, since it is larger than the sum of its proper divisors (232423587).

349204317 is a wasteful number, since it uses less digits than its factorization.

349204317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 349204317 is about 18687.0093112836. The cubic root of 349204317 is about 704.1954284032.

The spelling of 349204317 in words is "three hundred forty-nine million, two hundred four thousand, three hundred seventeen".