1006642 has 16 divisors (see below), whose sum is σ = 1858752. Its totient is φ = 398160.

The previous prime is 1006637. The next prime is 1006651. The reversal of 1006642 is 2466001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2584 + ... + 2947.

It is an arithmetic number, because the mean of its divisors is an integer number (116172).

2^1006642 is an apocalyptic number.

1006642 is a deficient number, since it is larger than the sum of its proper divisors (852110).

1006642 is a wasteful number, since it uses less digits than its factorization.

1006642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1006642 is about 1003.3155037175. The cubic root of 1006642 is about 100.2209116212.

The spelling of 1006642 in words is "one million, six thousand, six hundred forty-two".