349691604 has 24 divisors (see below), whose sum is σ = 826277760. Its totient is φ = 115088064.

The previous prime is 349691569. The next prime is 349691651. The reversal of 349691604 is 406196943.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183489 + ... + 185384.

It is an arithmetic number, because the mean of its divisors is an integer number (34428240).

Almost surely, 2^349691604 is an apocalyptic number.

It is an amenable number.

349691604 is an abundant number, since it is smaller than the sum of its proper divisors (476586156).

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

349691604 is a wasteful number, since it uses less digits than its factorization.

349691604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368959 (or 368957 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 349691604 is about 18700.0428876514. The cubic root of 349691604 is about 704.5228258359.

The spelling of 349691604 in words is "three hundred forty-nine million, six hundred ninety-one thousand, six hundred four".