1000285869 has 16 divisors (see below), whose sum is σ = 1478816064. Its totient is φ = 596294400.

The previous prime is 1000285829. The next prime is 1000285873. The reversal of 1000285869 is 9685820001.

It is not a de Polignac number, because 1000285869 - 2⁸ = 1000285613 is a prime.

It is a super-2 number, since 2×1000285869² = 2001143639442170322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000285829) 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 15 ways as a sum of consecutive naturals, for example, 246444 + ... + 250469.

It is an arithmetic number, because the mean of its divisors is an integer number (92426004).

Almost surely, 2^1000285869 is an apocalyptic number.

It is an amenable number.

1000285869 is a deficient number, since it is larger than the sum of its proper divisors (478530195).

1000285869 is a wasteful number, since it uses less digits than its factorization.

1000285869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496988.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1000285869 is about 31627.2962644612. The cubic root of 1000285869 is about 1000.0952805880.

The spelling of 1000285869 in words is "one billion, two hundred eighty-five thousand, eight hundred sixty-nine".