343741321 has 24 divisors (see below), whose sum is σ = 451275840. Its totient is φ = 258602400.

The previous prime is 343741319. The next prime is 343741439. The reversal of 343741321 is 123147343.

It is not a de Polignac number, because 343741321 - 2¹ = 343741319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343741321.

It is not an unprimeable number, because it can be changed into a prime (343741621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4636 + ... + 26626.

It is an arithmetic number, because the mean of its divisors is an integer number (18803160).

Almost surely, 2^343741321 is an apocalyptic number.

It is an amenable number.

343741321 is a deficient number, since it is larger than the sum of its proper divisors (107534519).

343741321 is a wasteful number, since it uses less digits than its factorization.

343741321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22045 (or 22038 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 343741321 is about 18540.2621610375. The cubic root of 343741321 is about 700.5039371235.

Adding to 343741321 its reverse (123147343), we get a palindrome (466888664).

The spelling of 343741321 in words is "three hundred forty-three million, seven hundred forty-one thousand, three hundred twenty-one".