1066140 has 36 divisors (see below), whose sum is σ = 3234504. Its totient is φ = 284256.

The previous prime is 1066139. The next prime is 1066141. The reversal of 1066140 is 416601.

1066140 is a `hidden beast` number, since 1 + 0 + 661 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1066139) and next prime (1066141).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1066140² = 2273308999200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2782 + ... + 3141.

2^1066140 is an apocalyptic number.

1066140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066140 is an abundant number, since it is smaller than the sum of its proper divisors (2168364).

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

1066140 is a wasteful number, since it uses less digits than its factorization.

1066140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938 (or 5933 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1066140 is about 1032.5405561042. The cubic root of 1066140 is about 102.1577719826.

It can be divided in two parts, 10661 and 40, that added together give a palindrome (10701).

The spelling of 1066140 in words is "one million, sixty-six thousand, one hundred forty".