1042666 has 8 divisors (see below), whose sum is σ = 1618020. Its totient is φ = 503328.

The previous prime is 1042633. The next prime is 1042681. The reversal of 1042666 is 6662401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1042441 + 225 = 1021^2 + 15^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1042666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8931 + ... + 9046.

2^1042666 is an apocalyptic number.

1042666 is a deficient number, since it is larger than the sum of its proper divisors (575354).

1042666 is a wasteful number, since it uses less digits than its factorization.

1042666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18008.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1042666 is about 1021.1101801471. The cubic root of 1042666 is about 101.4024396837.

The spelling of 1042666 in words is "one million, forty-two thousand, six hundred sixty-six".