440465863 has 2 divisors, whose sum is σ = 440465864. Its totient is φ = 440465862.

The previous prime is 440465761. The next prime is 440465873. The reversal of 440465863 is 368564044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440465863 - 2¹³ = 440457671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440465873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220232931 + 220232932.

It is an arithmetic number, because the mean of its divisors is an integer number (220232932).

Almost surely, 2^440465863 is an apocalyptic number.

440465863 is a deficient number, since it is larger than the sum of its proper divisors (1).

440465863 is an equidigital number, since it uses as much as digits as its factorization.

440465863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 40.

The square root of 440465863 is about 20987.2785991896. The cubic root of 440465863 is about 760.8588300229.

The spelling of 440465863 in words is "four hundred forty million, four hundred sixty-five thousand, eight hundred sixty-three".