349994688 has 56 divisors (see below), whose sum is σ = 928737792. Its totient is φ = 116323584.

The previous prime is 349994683. The next prime is 349994699. The reversal of 349994688 is 886499943.

It is not an unprimeable number, because it can be changed into a prime (349994683) 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, 67981 + ... + 72947.

Almost surely, 2^349994688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349994688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464368896).

349994688 is an abundant number, since it is smaller than the sum of its proper divisors (578743104).

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

349994688 is a wasteful number, since it uses less digits than its factorization.

349994688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349 (or 5339 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 349994688 is about 18708.1449641593. The cubic root of 349994688 is about 704.7263079265.

The spelling of 349994688 in words is "three hundred forty-nine million, nine hundred ninety-four thousand, six hundred eighty-eight".