343203401 has 4 divisors (see below), whose sum is σ = 358125312. Its totient is φ = 328281492.

The previous prime is 343203389. The next prime is 343203407. The reversal of 343203401 is 104302343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104302343 = 19 ⋅5489597.

It is a cyclic number.

It is not a de Polignac number, because 343203401 - 2¹⁸ = 342941257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343203407) 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, 7460921 + ... + 7460966.

It is an arithmetic number, because the mean of its divisors is an integer number (89531328).

Almost surely, 2^343203401 is an apocalyptic number.

It is an amenable number.

343203401 is a deficient number, since it is larger than the sum of its proper divisors (14921911).

343203401 is a wasteful number, since it uses less digits than its factorization.

343203401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921910.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 343203401 is about 18525.7496744396. The cubic root of 343203401 is about 700.1383406852.

Adding to 343203401 its reverse (104302343), we get a palindrome (447505744).

The spelling of 343203401 in words is "three hundred forty-three million, two hundred three thousand, four hundred one".