1064440999 has 2 divisors, whose sum is σ = 1064441000. Its totient is φ = 1064440998.

The previous prime is 1064440991. The next prime is 1064441083. The reversal of 1064440999 is 9990444601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1064440999 - 2³ = 1064440991 is a prime.

It is a super-2 number, since 2×1064440999² = 2266069280704236002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064440991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532220499 + 532220500.

It is an arithmetic number, because the mean of its divisors is an integer number (532220500).

Almost surely, 2^1064440999 is an apocalyptic number.

1064440999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064440999 is an equidigital number, since it uses as much as digits as its factorization.

1064440999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 1064440999 is about 32625.7720061917. The cubic root of 1064440999 is about 1021.0347691291.

The spelling of 1064440999 in words is "one billion, sixty-four million, four hundred forty thousand, nine hundred ninety-nine".