1006195894 has 16 divisors (see below), whose sum is σ = 1650428496. Its totient is φ = 456271200.

The previous prime is 1006195891. The next prime is 1006195907. The reversal of 1006195894 is 4985916001.

It is a self number, because there is not a number n which added to its sum of digits gives 1006195894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006195891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45057 + ... + 63580.

It is an arithmetic number, because the mean of its divisors is an integer number (103151781).

Almost surely, 2^1006195894 is an apocalyptic number.

1006195894 is a deficient number, since it is larger than the sum of its proper divisors (644232602).

1006195894 is a wasteful number, since it uses less digits than its factorization.

1006195894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109071.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1006195894 is about 31720.5910096265. The cubic root of 1006195894 is about 1002.0610471662.

The spelling of 1006195894 in words is "one billion, six million, one hundred ninety-five thousand, eight hundred ninety-four".