1066680 has 48 divisors (see below), whose sum is σ = 3467880. Its totient is φ = 284352.

The previous prime is 1066669. The next prime is 1066687. The reversal of 1066680 is 866601.

It is a super-2 number, since 2×1066680² = 2275612444800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122 + ... + 1841.

2^1066680 is an apocalyptic number.

1066680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066680 is an abundant number, since it is smaller than the sum of its proper divisors (2401200).

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

1066680 is a wasteful number, since it uses less digits than its factorization.

1066680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2973 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1066680 is about 1032.8020139407. The cubic root of 1066680 is about 102.1750167115.

It can be divided in two parts, 106 and 6680, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 1066680 in words is "one million, sixty-six thousand, six hundred eighty".