1066278 has 16 divisors (see below), whose sum is σ = 2163456. Its totient is φ = 350280.

The previous prime is 1066267. The next prime is 1066279. The reversal of 1066278 is 8726601.

It is a happy number.

It is a super-2 number, since 2×1066278² = 2273897546568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066279) 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 7 ways as a sum of consecutive naturals, for example, 826 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (135216).

2^1066278 is an apocalyptic number.

1066278 is an abundant number, since it is smaller than the sum of its proper divisors (1097178).

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

1066278 is a wasteful number, since it uses less digits than its factorization.

1066278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1066278 is about 1032.6073794042. The cubic root of 1066278 is about 102.1621795227.

The spelling of 1066278 in words is "one million, sixty-six thousand, two hundred seventy-eight".