349374845 has 8 divisors (see below), whose sum is σ = 419960376. Its totient is φ = 279026176.

The previous prime is 349374833. The next prime is 349374847. The reversal of 349374845 is 548473943.

It can be written as a sum of positive squares in 4 ways, for example, as 320356 + 349054489 = 566^2 + 18683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349374845 - 2²⁰ = 348326269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 349374845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349374847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55952 + ... + 61881.

It is an arithmetic number, because the mean of its divisors is an integer number (52495047).

Almost surely, 2^349374845 is an apocalyptic number.

It is an amenable number.

349374845 is a deficient number, since it is larger than the sum of its proper divisors (70585531).

349374845 is a wasteful number, since it uses less digits than its factorization.

349374845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118431.

The product of its digits is 1451520, while the sum is 47.

The square root of 349374845 is about 18691.5714962654. The cubic root of 349374845 is about 704.3100370438.

The spelling of 349374845 in words is "three hundred forty-nine million, three hundred seventy-four thousand, eight hundred forty-five".