349693188 has 48 divisors (see below), whose sum is σ = 879902016. Its totient is φ = 107452800.

The previous prime is 349693181. The next prime is 349693217. The reversal of 349693188 is 881396943.

It is a self number, because there is not a number n which added to its sum of digits gives 349693188.

It is not an unprimeable number, because it can be changed into a prime (349693181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202095 + ... + 203817.

It is an arithmetic number, because the mean of its divisors is an integer number (18331292).

Almost surely, 2^349693188 is an apocalyptic number.

It is an amenable number.

349693188 is an abundant number, since it is smaller than the sum of its proper divisors (530208828).

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

349693188 is a wasteful number, since it uses less digits than its factorization.

349693188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044 (or 3042 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 349693188 is about 18700.0852404474. The cubic root of 349693188 is about 704.5238895947.

The spelling of 349693188 in words is "three hundred forty-nine million, six hundred ninety-three thousand, one hundred eighty-eight".