1326320260 has 24 divisors (see below), whose sum is σ = 2844535680. Its totient is φ = 519239904.

The previous prime is 1326320239. The next prime is 1326320267. The reversal of 1326320260 is 620236231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1326320267) 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, 704550 + ... + 706429.

It is an arithmetic number, because the mean of its divisors is an integer number (118522320).

Almost surely, 2^1326320260 is an apocalyptic number.

1326320260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326320260 is an abundant number, since it is smaller than the sum of its proper divisors (1518215420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1326320260 is a wasteful number, since it uses less digits than its factorization.

1326320260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411035 (or 1411033 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1326320260 is about 36418.6800968953. The cubic root of 1326320260 is about 1098.7093015626.

Adding to 1326320260 its reverse (620236231), we get a palindrome (1946556491).

The spelling of 1326320260 in words is "one billion, three hundred twenty-six million, three hundred twenty thousand, two hundred sixty".