1068720 has 80 divisors (see below), whose sum is σ = 3413472. Its totient is φ = 276480.

The previous prime is 1068719. The next prime is 1068721. The reversal of 1068720 is 278601.

It is an interprime number because it is at equal distance from previous prime (1068719) and next prime (1068721).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1068720² = 2284324876800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1068721) 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, 14604 + ... + 14676.

2^1068720 is an apocalyptic number.

1068720 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 1068720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706736).

1068720 is an abundant number, since it is smaller than the sum of its proper divisors (2344752).

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

1068720 is a wasteful number, since it uses less digits than its factorization.

1068720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1068720 is about 1033.7891467799. The cubic root of 1068720 is about 102.2401109910.

The spelling of 1068720 in words is "one million, sixty-eight thousand, seven hundred twenty".