349428347 has 8 divisors (see below), whose sum is σ = 352430400. Its totient is φ = 346433544.

The previous prime is 349428323. The next prime is 349428349. The reversal of 349428347 is 743824943.

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 349428347 - 2¹⁸ = 349166203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349428298 and 349428307.

It is not an unprimeable number, because it can be changed into a prime (349428349) 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, 140408 + ... + 142874.

It is an arithmetic number, because the mean of its divisors is an integer number (44053800).

Almost surely, 2^349428347 is an apocalyptic number.

349428347 is a deficient number, since it is larger than the sum of its proper divisors (3002053).

349428347 is a wasteful number, since it uses less digits than its factorization.

349428347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625.

The product of its digits is 580608, while the sum is 44.

The square root of 349428347 is about 18693.0026213019. The cubic root of 349428347 is about 704.3459870392.

The spelling of 349428347 in words is "three hundred forty-nine million, four hundred twenty-eight thousand, three hundred forty-seven".