440970889 has 2 divisors, whose sum is σ = 440970890. Its totient is φ = 440970888.

The previous prime is 440970857. The next prime is 440970919. The reversal of 440970889 is 988079044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424689664 + 16281225 = 20608^2 + 4035^2 .

It is a cyclic number.

It is not a de Polignac number, because 440970889 - 2⁵ = 440970857 is a prime.

It is not a weakly prime, because it can be changed into another prime (440970389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220485444 + 220485445.

It is an arithmetic number, because the mean of its divisors is an integer number (220485445).

Almost surely, 2^440970889 is an apocalyptic number.

It is an amenable number.

440970889 is a deficient number, since it is larger than the sum of its proper divisors (1).

440970889 is an equidigital number, since it uses as much as digits as its factorization.

440970889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 440970889 is about 20999.3068695136. The cubic root of 440970889 is about 761.1495121991.

The spelling of 440970889 in words is "four hundred forty million, nine hundred seventy thousand, eight hundred eighty-nine".