1066880 has 32 divisors (see below), whose sum is σ = 2552040. Its totient is φ = 426496.

The previous prime is 1066867. The next prime is 1066883. The reversal of 1066880 is 886601.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1066880² = 2276465868800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194 + ... + 1473.

2^1066880 is an apocalyptic number.

1066880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066880 is an abundant number, since it is smaller than the sum of its proper divisors (1485160).

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

1066880 is an equidigital number, since it uses as much as digits as its factorization.

1066880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1066880 is about 1032.8988333811. The cubic root of 1066880 is about 102.1814021711.

The spelling of 1066880 in words is "one million, sixty-six thousand, eight hundred eighty".