1040866 has 4 divisors (see below), whose sum is σ = 1561302. Its totient is φ = 520432.

The previous prime is 1040861. The next prime is 1040873. The reversal of 1040866 is 6680401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 221841 = 905^2 + 471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1040866.

It is not an unprimeable number, because it can be changed into a prime (1040861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260215 + ... + 260218.

2^1040866 is an apocalyptic number.

1040866 is a deficient number, since it is larger than the sum of its proper divisors (520436).

1040866 is an equidigital number, since it uses as much as digits as its factorization.

1040866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520435.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1040866 is about 1020.2284057994. The cubic root of 1040866 is about 101.3440542481.

The spelling of 1040866 in words is "one million, forty thousand, eight hundred sixty-six".