349999015 has 8 divisors (see below), whose sum is σ = 427923648. Its totient is φ = 274716000.

The previous prime is 349999007. The next prime is 349999031. The reversal of 349999015 is 510999943.

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

It is not a de Polignac number, because 349999015 - 2³ = 349999007 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 349999015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660111 + ... + 660640.

It is an arithmetic number, because the mean of its divisors is an integer number (53490456).

Almost surely, 2^349999015 is an apocalyptic number.

349999015 is a deficient number, since it is larger than the sum of its proper divisors (77924633).

349999015 is a wasteful number, since it uses less digits than its factorization.

349999015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320809.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 349999015 is about 18708.2606086189. The cubic root of 349999015 is about 704.7292121021.

The spelling of 349999015 in words is "three hundred forty-nine million, nine hundred ninety-nine thousand, fifteen".