1066020 has 48 divisors (see below), whose sum is σ = 3030720. Its totient is φ = 279936.

The previous prime is 1066001. The next prime is 1066031. The reversal of 1066020 is 206601.

It is a super-2 number, since 2×1066020² = 2272797280800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6459 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (63140).

2^1066020 is an apocalyptic number.

1066020 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 1066020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515360).

1066020 is an abundant number, since it is smaller than the sum of its proper divisors (1964700).

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

1066020 is a wasteful number, since it uses less digits than its factorization.

1066020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1066020 is about 1032.4824453713. The cubic root of 1066020 is about 102.1539390299.

The spelling of 1066020 in words is "one million, sixty-six thousand, twenty".