343043561 has 16 divisors (see below), whose sum is σ = 423590400. Its totient is φ = 276736320.

The previous prime is 343043557. The next prime is 343043567. The reversal of 343043561 is 165340343.

It is not a de Polignac number, because 343043561 - 2² = 343043557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343043567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23585 + ... + 35246.

It is an arithmetic number, because the mean of its divisors is an integer number (26474400).

Almost surely, 2^343043561 is an apocalyptic number.

It is an amenable number.

343043561 is a deficient number, since it is larger than the sum of its proper divisors (80546839).

343043561 is an equidigital number, since it uses as much as digits as its factorization.

343043561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58869 (or 58855 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 343043561 is about 18521.4351765731. The cubic root of 343043561 is about 700.0296320789.

The spelling of 343043561 in words is "three hundred forty-three million, forty-three thousand, five hundred sixty-one".