1066530 has 32 divisors (see below), whose sum is σ = 2600064. Its totient is φ = 279936.

The previous prime is 1066523. The next prime is 1066531. The reversal of 1066530 is 356601.

1066530 is a nontrivial binomial coefficient, being equal to C(1461, 2).

It is a super-2 number, since 2×1066530² = 2274972481800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066497 and 1066506.

It is not an unprimeable number, because it can be changed into a prime (1066531) 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, 1947 + ... + 2433.

It is an arithmetic number, because the mean of its divisors is an integer number (81252).

2^1066530 is an apocalyptic number.

1066530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066530 is the 1460-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300032).

1066530 is an abundant number, since it is smaller than the sum of its proper divisors (1533534).

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

1066530 is a wasteful number, since it uses less digits than its factorization.

1066530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1066530 is about 1032.7293934037. The cubic root of 1066530 is about 102.1702270929.

It can be divided in two parts, 1066 and 530, that added together give a triangular number (1596 = T₅₆).

The spelling of 1066530 in words is "one million, sixty-six thousand, five hundred thirty".