349392678 has 16 divisors (see below), whose sum is σ = 729167616. Its totient is φ = 111400520.

The previous prime is 349392647. The next prime is 349392679. The reversal of 349392678 is 876293943.

It is a self number, because there is not a number n which added to its sum of digits gives 349392678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349392679) 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, 1265778 + ... + 1266053.

It is an arithmetic number, because the mean of its divisors is an integer number (45572976).

Almost surely, 2^349392678 is an apocalyptic number.

349392678 is an abundant number, since it is smaller than the sum of its proper divisors (379774938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349392678 is a wasteful number, since it uses less digits than its factorization.

349392678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531859.

The product of its digits is 1959552, while the sum is 51.

The square root of 349392678 is about 18692.0485233695. The cubic root of 349392678 is about 704.3220201114.

The spelling of 349392678 in words is "three hundred forty-nine million, three hundred ninety-two thousand, six hundred seventy-eight".