1326260431 has 8 divisors (see below), whose sum is σ = 1384297344. Its totient is φ = 1268254680.

The previous prime is 1326260413. The next prime is 1326260461. The reversal of 1326260431 is 1340626231.

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 1326260431 - 2⁷ = 1326260303 is a prime.

It is a super-2 number, since 2×1326260431² = 3517933461672611522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1326260431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326260461) 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, 135360 + ... + 144826.

It is an arithmetic number, because the mean of its divisors is an integer number (173037168).

Almost surely, 2^1326260431 is an apocalyptic number.

1326260431 is a deficient number, since it is larger than the sum of its proper divisors (58036913).

1326260431 is an equidigital number, since it uses as much as digits as its factorization.

1326260431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15581.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1326260431 is about 36417.8586822454. The cubic root of 1326260431 is about 1098.6927807495.

Adding to 1326260431 its reverse (1340626231), we get a palindrome (2666886662).

The spelling of 1326260431 in words is "one billion, three hundred twenty-six million, two hundred sixty thousand, four hundred thirty-one".