349158791 has 8 divisors (see below), whose sum is σ = 366071424. Its totient is φ = 332390520.

The previous prime is 349158787. The next prime is 349158793. The reversal of 349158791 is 197851943.

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

It is a cyclic number.

It is not a de Polignac number, because 349158791 - 2² = 349158787 is a prime.

It is a super-2 number, since 2×349158791² = 243823722665163362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349158793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31121 + ... + 40826.

It is an arithmetic number, because the mean of its divisors is an integer number (45758928).

Almost surely, 2^349158791 is an apocalyptic number.

349158791 is a deficient number, since it is larger than the sum of its proper divisors (16912633).

349158791 is a wasteful number, since it uses less digits than its factorization.

349158791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72181.

The product of its digits is 272160, while the sum is 47.

The square root of 349158791 is about 18685.7911526379. The cubic root of 349158791 is about 704.1648249305.

The spelling of 349158791 in words is "three hundred forty-nine million, one hundred fifty-eight thousand, seven hundred ninety-one".