349808872 has 32 divisors (see below), whose sum is σ = 750657600. Its totient is φ = 149704704.

The previous prime is 349808839. The next prime is 349808903. The reversal of 349808872 is 278808943.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 39003 + ... + 47125.

It is an arithmetic number, because the mean of its divisors is an integer number (23458050).

Almost surely, 2^349808872 is an apocalyptic number.

It is an amenable number.

349808872 is an abundant number, since it is smaller than the sum of its proper divisors (400848728).

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

349808872 is a wasteful number, since it uses less digits than its factorization.

349808872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905 (or 8901 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 349808872 is about 18703.1781256555. The cubic root of 349808872 is about 704.6015702194.

The spelling of 349808872 in words is "three hundred forty-nine million, eight hundred eight thousand, eight hundred seventy-two".