343624261 has 4 divisors (see below), whose sum is σ = 345253024. Its totient is φ = 341995500.

The previous prime is 343624249. The next prime is 343624279. The reversal of 343624261 is 162426343.

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.

It is a cyclic number.

It is not a de Polignac number, because 343624261 - 2⁷ = 343624133 is a prime.

It is a super-2 number, since 2×343624261² = 236155265495592242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343628261) 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, 814065 + ... + 814486.

It is an arithmetic number, because the mean of its divisors is an integer number (86313256).

Almost surely, 2^343624261 is an apocalyptic number.

It is an amenable number.

343624261 is a deficient number, since it is larger than the sum of its proper divisors (1628763).

343624261 is a wasteful number, since it uses less digits than its factorization.

343624261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628762.

The product of its digits is 20736, while the sum is 31.

The square root of 343624261 is about 18537.1049789335. The cubic root of 343624261 is about 700.4244099752.

The spelling of 343624261 in words is "three hundred forty-three million, six hundred twenty-four thousand, two hundred sixty-one".