349508139 has 8 divisors (see below), whose sum is σ = 468426192. Its totient is φ = 231797760.

The previous prime is 349508119. The next prime is 349508143. The reversal of 349508139 is 931805943.

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

It is not a de Polignac number, because 349508139 - 2⁷ = 349508011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349508139.

It is not an unprimeable number, because it can be changed into a prime (349508119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301242 + ... + 302399.

It is an arithmetic number, because the mean of its divisors is an integer number (58553274).

Almost surely, 2^349508139 is an apocalyptic number.

349508139 is a deficient number, since it is larger than the sum of its proper divisors (118918053).

349508139 is a wasteful number, since it uses less digits than its factorization.

349508139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603837.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 349508139 is about 18695.1367740383. The cubic root of 349508139 is about 704.3995954525.

The spelling of 349508139 in words is "three hundred forty-nine million, five hundred eight thousand, one hundred thirty-nine".