343440437 has 2 divisors, whose sum is σ = 343440438. Its totient is φ = 343440436.

The previous prime is 343440373. The next prime is 343440457. The reversal of 343440437 is 734044343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293299876 + 50140561 = 17126^2 + 7081^2 .

It is a cyclic number.

It is not a de Polignac number, because 343440437 - 2⁶ = 343440373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343440457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171720218 + 171720219.

It is an arithmetic number, because the mean of its divisors is an integer number (171720219).

Almost surely, 2^343440437 is an apocalyptic number.

It is an amenable number.

343440437 is a deficient number, since it is larger than the sum of its proper divisors (1).

343440437 is an equidigital number, since it uses as much as digits as its factorization.

343440437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 32.

The square root of 343440437 is about 18532.1460441040. The cubic root of 343440437 is about 700.2994888549.

The spelling of 343440437 in words is "three hundred forty-three million, four hundred forty thousand, four hundred thirty-seven".