343404343 has 4 divisors (see below), whose sum is σ = 346804488. Its totient is φ = 340004200.

The previous prime is 343404287. The next prime is 343404349.

It is a happy number.

343404343 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 343404343 - 2²¹ = 341307191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343404349) 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, 1699921 + ... + 1700122.

It is an arithmetic number, because the mean of its divisors is an integer number (86701122).

Almost surely, 2^343404343 is an apocalyptic number.

343404343 is a deficient number, since it is larger than the sum of its proper divisors (3400145).

343404343 is a wasteful number, since it uses less digits than its factorization.

343404343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400144.

The product of its (nonzero) digits is 20736, while the sum is 28.

The square root of 343404343 is about 18531.1721971385. The cubic root of 343404343 is about 700.2749552506.

It can be divided in two parts, 34340 and 4343, that added together give a palindrome (38683).

The spelling of 343404343 in words is "three hundred forty-three million, four hundred four thousand, three hundred forty-three".