1326864 has 80 divisors (see below), whose sum is σ = 4285440. Its totient is φ = 343680.

The previous prime is 1326859. The next prime is 1326869. The reversal of 1326864 is 4686231.

It is an interprime number because it is at equal distance from previous prime (1326859) and next prime (1326869).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1326869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3517 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (53568).

2^1326864 is an apocalyptic number.

1326864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142720).

1326864 is an abundant number, since it is smaller than the sum of its proper divisors (2958576).

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

1326864 is a wasteful number, since it uses less digits than its factorization.

1326864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1326864 is about 1151.8958286234. The cubic root of 1326864 is about 109.8859423820.

It can be divided in two parts, 132 and 6864, that added together give a palindrome (6996).

The spelling of 1326864 in words is "one million, three hundred twenty-six thousand, eight hundred sixty-four".