1440452323 has 2 divisors, whose sum is σ = 1440452324. Its totient is φ = 1440452322.

The previous prime is 1440452317. The next prime is 1440452327. The reversal of 1440452323 is 3232540441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440452323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1440452291 and 1440452300.

It is not a weakly prime, because it can be changed into another prime (1440452327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720226161 + 720226162.

It is an arithmetic number, because the mean of its divisors is an integer number (720226162).

Almost surely, 2^1440452323 is an apocalyptic number.

1440452323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440452323 is an equidigital number, since it uses as much as digits as its factorization.

1440452323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1440452323 is about 37953.2913329002. The cubic root of 1440452323 is about 1129.3614590127.

Adding to 1440452323 its reverse (3232540441), we get a palindrome (4672992764).

The spelling of 1440452323 in words is "one billion, four hundred forty million, four hundred fifty-two thousand, three hundred twenty-three".