1068320 has 48 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 387840.

The previous prime is 1068311. The next prime is 1068323. The reversal of 1068320 is 238601.

It is a super-2 number, since 2×1068320² = 2282615244800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1068292 and 1068301.

It is not an unprimeable number, because it can be changed into a prime (1068323) 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, 1457 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2^1068320 is an apocalyptic number.

1068320 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 1068320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378944).

1068320 is an abundant number, since it is smaller than the sum of its proper divisors (1689568).

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

1068320 is a wasteful number, since it uses less digits than its factorization.

1068320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1068320 is about 1033.5956656256. The cubic root of 1068320 is about 102.2273539397.

The spelling of 1068320 in words is "one million, sixty-eight thousand, three hundred twenty".