349959843 has 12 divisors (see below), whose sum is σ = 517253880. Its totient is φ = 227880576.

The previous prime is 349959839. The next prime is 349959877. The reversal of 349959843 is 348959943.

349959843 is a `hidden beast` number, since 3 + 4 + 9 + 9 + 598 + 43 = 666.

It is not a de Polignac number, because 349959843 - 2² = 349959839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349959843.

It is not an unprimeable number, because it can be changed into a prime (349959833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451758 + ... + 452531.

It is an arithmetic number, because the mean of its divisors is an integer number (43104490).

Almost surely, 2^349959843 is an apocalyptic number.

349959843 is a deficient number, since it is larger than the sum of its proper divisors (167294037).

349959843 is a wasteful number, since it uses less digits than its factorization.

349959843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904338 (or 904335 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 349959843 is about 18707.2136621144. The cubic root of 349959843 is about 704.7029199494.

The spelling of 349959843 in words is "three hundred forty-nine million, nine hundred fifty-nine thousand, eight hundred forty-three".