349811916 has 24 divisors (see below), whose sum is σ = 820506624. Its totient is φ = 115992720.

The previous prime is 349811911. The next prime is 349811963. The reversal of 349811916 is 619118943.

It is not an unprimeable number, because it can be changed into a prime (349811911) 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, 74020 + ... + 78603.

It is an arithmetic number, because the mean of its divisors is an integer number (34187776).

Almost surely, 2^349811916 is an apocalyptic number.

It is an amenable number.

349811916 is an abundant number, since it is smaller than the sum of its proper divisors (470694708).

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

349811916 is a wasteful number, since it uses less digits than its factorization.

349811916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152821 (or 152819 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 349811916 is about 18703.2595020226. The cubic root of 349811916 is about 704.6036140030.

The spelling of 349811916 in words is "three hundred forty-nine million, eight hundred eleven thousand, nine hundred sixteen".