1323440413 has 8 divisors (see below), whose sum is σ = 1348091640. Its totient is φ = 1299006720.

The previous prime is 1323440381. The next prime is 1323440423. The reversal of 1323440413 is 3140443231.

It can be written as a sum of positive squares in 4 ways, for example, as 302829604 + 1020610809 = 17402^2 + 31947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323440413 - 2⁵ = 1323440381 is a prime.

It is a super-2 number, since 2×1323440413² = 3502989053523221138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323440423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42078 + ... + 66463.

It is an arithmetic number, because the mean of its divisors is an integer number (168511455).

Almost surely, 2^1323440413 is an apocalyptic number.

It is an amenable number.

1323440413 is a deficient number, since it is larger than the sum of its proper divisors (24651227).

1323440413 is a wasteful number, since it uses less digits than its factorization.

1323440413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108767.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1323440413 is about 36379.1205638619. The cubic root of 1323440413 is about 1097.9135139902.

Adding to 1323440413 its reverse (3140443231), we get a palindrome (4463883644).

The spelling of 1323440413 in words is "one billion, three hundred twenty-three million, four hundred forty thousand, four hundred thirteen".