343423331 has 4 divisors (see below), whose sum is σ = 346823664. Its totient is φ = 340023000.

The previous prime is 343423303. The next prime is 343423337. The reversal of 343423331 is 133324343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343423331 is a prime.

It is a super-2 number, since 2×343423331² = 235879168550271122, which contains 22 as substring.

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 343423331.

It is not an unprimeable number, because it can be changed into a prime (343423337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700015 + ... + 1700216.

It is an arithmetic number, because the mean of its divisors is an integer number (86705916).

Almost surely, 2^343423331 is an apocalyptic number.

343423331 is a deficient number, since it is larger than the sum of its proper divisors (3400333).

343423331 is a wasteful number, since it uses less digits than its factorization.

343423331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400332.

The product of its digits is 7776, while the sum is 26.

The square root of 343423331 is about 18531.6845159850. The cubic root of 343423331 is about 700.2878618781.

Adding to 343423331 its reverse (133324343), we get a palindrome (476747674).

It can be divided in two parts, 34342 and 3331, that added together give a palindrome (37673).

The spelling of 343423331 in words is "three hundred forty-three million, four hundred twenty-three thousand, three hundred thirty-one".