1066538 has 8 divisors (see below), whose sum is σ = 1745280. Its totient is φ = 484780.

The previous prime is 1066531. The next prime is 1066553. The reversal of 1066538 is 8356601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1066538² = 2275006610888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066538.

It is not an unprimeable number, because it can be changed into a prime (1066531) 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 3 ways as a sum of consecutive naturals, for example, 24218 + ... + 24261.

It is an arithmetic number, because the mean of its divisors is an integer number (218160).

2^1066538 is an apocalyptic number.

1066538 is a deficient number, since it is larger than the sum of its proper divisors (678742).

1066538 is a wasteful number, since it uses less digits than its factorization.

1066538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48492.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1066538 is about 1032.7332666279. The cubic root of 1066538 is about 102.1704825506.

The spelling of 1066538 in words is "one million, sixty-six thousand, five hundred thirty-eight".