349866039 has 4 divisors (see below), whose sum is σ = 466488056. Its totient is φ = 233244024.

The previous prime is 349866029. The next prime is 349866053. The reversal of 349866039 is 930668943.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 349866039 - 2¹⁵ = 349833271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349866029) 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, 58311004 + ... + 58311009.

It is an arithmetic number, because the mean of its divisors is an integer number (116622014).

Almost surely, 2^349866039 is an apocalyptic number.

349866039 is a deficient number, since it is larger than the sum of its proper divisors (116622017).

349866039 is a wasteful number, since it uses less digits than its factorization.

349866039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116622016.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 349866039 is about 18704.7063328992. The cubic root of 349866039 is about 704.6399509535.

The spelling of 349866039 in words is "three hundred forty-nine million, eight hundred sixty-six thousand, thirty-nine".