840800912 has 40 divisors (see below), whose sum is σ = 1872963456. Its totient is φ = 358177536.

The previous prime is 840800819. The next prime is 840800923. The reversal of 840800912 is 219008048.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 3773 + ... + 41180.

Almost surely, 2^840800912 is an apocalyptic number.

It is an amenable number.

840800912 is an abundant number, since it is smaller than the sum of its proper divisors (1032162544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

840800912 is a wasteful number, since it uses less digits than its factorization.

840800912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45135 (or 45129 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 840800912 is about 28996.5672451068. The cubic root of 840800912 is about 943.8385784029.

The spelling of 840800912 in words is "eight hundred forty million, eight hundred thousand, nine hundred twelve".