440670343 has 2 divisors, whose sum is σ = 440670344. Its totient is φ = 440670342.

The previous prime is 440670319. The next prime is 440670353. The reversal of 440670343 is 343076044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440670343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440670353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220335171 + 220335172.

It is an arithmetic number, because the mean of its divisors is an integer number (220335172).

Almost surely, 2^440670343 is an apocalyptic number.

440670343 is a deficient number, since it is larger than the sum of its proper divisors (1).

440670343 is an equidigital number, since it uses as much as digits as its factorization.

440670343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 440670343 is about 20992.1495564413. The cubic root of 440670343 is about 760.9765510977.

The spelling of 440670343 in words is "four hundred forty million, six hundred seventy thousand, three hundred forty-three".