1440313999 has 2 divisors, whose sum is σ = 1440314000. Its totient is φ = 1440313998.

The previous prime is 1440313997. The next prime is 1440314003. The reversal of 1440313999 is 9993130441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440313999 - 2¹ = 1440313997 is a prime.

Together with 1440313997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440313991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720156999 + 720157000.

It is an arithmetic number, because the mean of its divisors is an integer number (720157000).

Almost surely, 2^1440313999 is an apocalyptic number.

1440313999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440313999 is an equidigital number, since it uses as much as digits as its factorization.

1440313999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 1440313999 is about 37951.4689966014. The cubic root of 1440313999 is about 1129.3253076843.

The spelling of 1440313999 in words is "one billion, four hundred forty million, three hundred thirteen thousand, nine hundred ninety-nine".