1002878812 has 24 divisors (see below), whose sum is σ = 1955217600. Its totient is φ = 446905536.

The previous prime is 1002878803. The next prime is 1002878813. The reversal of 1002878812 is 2188782001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002878813) 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, 331012 + ... + 334027.

It is an arithmetic number, because the mean of its divisors is an integer number (81467400).

Almost surely, 2^1002878812 is an apocalyptic number.

It is an amenable number.

1002878812 is a deficient number, since it is larger than the sum of its proper divisors (952338788).

1002878812 is a wasteful number, since it uses less digits than its factorization.

1002878812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665085 (or 665083 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 1002878812 is about 31668.2619036789. The cubic root of 1002878812 is about 1000.9586846301.

The spelling of 1002878812 in words is "one billion, two million, eight hundred seventy-eight thousand, eight hundred twelve".