440206043 has 2 divisors, whose sum is σ = 440206044. Its totient is φ = 440206042.

The previous prime is 440206031. The next prime is 440206087. The reversal of 440206043 is 340602044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440206043 - 2⁴ = 440206027 is a prime.

It is not a weakly prime, because it can be changed into another prime (440206343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220103021 + 220103022.

It is an arithmetic number, because the mean of its divisors is an integer number (220103022).

Almost surely, 2^440206043 is an apocalyptic number.

440206043 is a deficient number, since it is larger than the sum of its proper divisors (1).

440206043 is an equidigital number, since it uses as much as digits as its factorization.

440206043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 440206043 is about 20981.0877458725. The cubic root of 440206043 is about 760.7091966152.

Adding to 440206043 its reverse (340602044), we get a palindrome (780808087).

The spelling of 440206043 in words is "four hundred forty million, two hundred six thousand, forty-three".