349051731 has 8 divisors (see below), whose sum is σ = 531888384. Its totient is φ = 199458120.

The previous prime is 349051711. The next prime is 349051757. The reversal of 349051731 is 137150943.

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

It is a de Polignac number, because none of the positive numbers 2^k-349051731 is a prime.

It is a super-2 number, since 2×349051731² = 243674221828192722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 349051692 and 349051701.

It is not an unprimeable number, because it can be changed into a prime (349051711) 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, 8310735 + ... + 8310776.

It is an arithmetic number, because the mean of its divisors is an integer number (66486048).

Almost surely, 2^349051731 is an apocalyptic number.

349051731 is a deficient number, since it is larger than the sum of its proper divisors (182836653).

349051731 is a wasteful number, since it uses less digits than its factorization.

349051731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16621521.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 349051731 is about 18682.9261894383. The cubic root of 349051731 is about 704.0928466075.

The spelling of 349051731 in words is "three hundred forty-nine million, fifty-one thousand, seven hundred thirty-one".