349390558 has 8 divisors (see below), whose sum is σ = 571730040. Its totient is φ = 158813880.

The previous prime is 349390543. The next prime is 349390571. The reversal of 349390558 is 855093943.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×349390558⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

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, 7940673 + ... + 7940716.

It is an arithmetic number, because the mean of its divisors is an integer number (71466255).

Almost surely, 2^349390558 is an apocalyptic number.

349390558 is a deficient number, since it is larger than the sum of its proper divisors (222339482).

349390558 is a wasteful number, since it uses less digits than its factorization.

349390558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881402.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 349390558 is about 18691.9918146783. The cubic root of 349390558 is about 704.3205955770.

The spelling of 349390558 in words is "three hundred forty-nine million, three hundred ninety thousand, five hundred fifty-eight".