349209028 has 12 divisors (see below), whose sum is σ = 698418112. Its totient is φ = 149661000.

The previous prime is 349209011. The next prime is 349209031. The reversal of 349209028 is 820902943.

349209028 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6235848 + ... + 6235903.

Almost surely, 2^349209028 is an apocalyptic number.

It is an amenable number.

349209028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

349209028 is a wasteful number, since it uses less digits than its factorization.

349209028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471762 (or 12471760 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 349209028 is about 18687.1353609910. The cubic root of 349209028 is about 704.1985950782.

The spelling of 349209028 in words is "three hundred forty-nine million, two hundred nine thousand, twenty-eight".