349931028 has 12 divisors (see below), whose sum is σ = 816505760. Its totient is φ = 116643672.

The previous prime is 349931011. The next prime is 349931047. The reversal of 349931028 is 820139943.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14580448 + ... + 14580471.

Almost surely, 2^349931028 is an apocalyptic number.

It is an amenable number.

349931028 is an abundant number, since it is smaller than the sum of its proper divisors (466574732).

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

349931028 is a wasteful number, since it uses less digits than its factorization.

349931028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29160926 (or 29160924 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 349931028 is about 18706.4434888089. The cubic root of 349931028 is about 704.6835781379.

The spelling of 349931028 in words is "three hundred forty-nine million, nine hundred thirty-one thousand, twenty-eight".