349780784 has 20 divisors (see below), whose sum is σ = 680209440. Its totient is φ = 174242880.

The previous prime is 349780777. The next prime is 349780793. The reversal of 349780784 is 487087943.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35999 + ... + 44670.

It is an arithmetic number, because the mean of its divisors is an integer number (34010472).

Almost surely, 2^349780784 is an apocalyptic number.

It is an amenable number.

349780784 is a deficient number, since it is larger than the sum of its proper divisors (330428656).

349780784 is a wasteful number, since it uses less digits than its factorization.

349780784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80948 (or 80942 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 349780784 is about 18702.4272221549. The cubic root of 349780784 is about 704.5827109887.

The spelling of 349780784 in words is "three hundred forty-nine million, seven hundred eighty thousand, seven hundred eighty-four".