1326320 has 40 divisors (see below), whose sum is σ = 3147120. Its totient is φ = 519680.

The previous prime is 1326319. The next prime is 1326343. The reversal of 1326320 is 236231.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4580 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (78678).

2^1326320 is an apocalyptic number.

1326320 is a gapful number since it is divisible by the number (10) 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 1326320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573560).

1326320 is an abundant number, since it is smaller than the sum of its proper divisors (1820800).

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

1326320 is a wasteful number, since it uses less digits than its factorization.

1326320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1326320 is about 1151.6596719517. The cubic root of 1326320 is about 109.8709229769.

The spelling of 1326320 in words is "one million, three hundred twenty-six thousand, three hundred twenty".