18457343 has 2 divisors, whose sum is σ = 18457344. Its totient is φ = 18457342.

The previous prime is 18457331. The next prime is 18457357. The reversal of 18457343 is 34375481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18457343 - 2⁶ = 18457279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18457643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9228671 + 9228672.

It is an arithmetic number, because the mean of its divisors is an integer number (9228672).

Almost surely, 2^18457343 is an apocalyptic number.

18457343 is a deficient number, since it is larger than the sum of its proper divisors (1).

18457343 is an equidigital number, since it uses as much as digits as its factorization.

18457343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 18457343 is about 4296.2009962291. The cubic root of 18457343 is about 264.2751903563.

The spelling of 18457343 in words is "eighteen million, four hundred fifty-seven thousand, three hundred forty-three".