349784916 has 24 divisors (see below), whose sum is σ = 878947104. Its totient is φ = 107626080.

The previous prime is 349784909. The next prime is 349784933. The reversal of 349784916 is 619487943.

It is a super-2 number, since 2×349784916² = 244698974922254112, which contains 22 as substring.

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, 1120950 + ... + 1121261.

It is an arithmetic number, because the mean of its divisors is an integer number (36622796).

Almost surely, 2^349784916 is an apocalyptic number.

It is an amenable number.

349784916 is an abundant number, since it is smaller than the sum of its proper divisors (529162188).

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

349784916 is a wasteful number, since it uses less digits than its factorization.

349784916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242231 (or 2242229 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 349784916 is about 18702.5376887737. The cubic root of 349784916 is about 704.5854854162.

The spelling of 349784916 in words is "three hundred forty-nine million, seven hundred eighty-four thousand, nine hundred sixteen".