349122815 has 16 divisors (see below), whose sum is σ = 450385920. Its totient is φ = 258965280.

The previous prime is 349122811. The next prime is 349122821. The reversal of 349122815 is 518221943.

It is not a de Polignac number, because 349122815 - 2² = 349122811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349122811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34631 + ... + 43560.

It is an arithmetic number, because the mean of its divisors is an integer number (28149120).

Almost surely, 2^349122815 is an apocalyptic number.

349122815 is a deficient number, since it is larger than the sum of its proper divisors (101263105).

349122815 is a wasteful number, since it uses less digits than its factorization.

349122815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78262.

The product of its digits is 17280, while the sum is 35.

The square root of 349122815 is about 18684.8284712491. The cubic root of 349122815 is about 704.1406392739.

The spelling of 349122815 in words is "three hundred forty-nine million, one hundred twenty-two thousand, eight hundred fifteen".