8400440012 has 24 divisors (see below), whose sum is σ = 14811014400. Its totient is φ = 4168797840.

The previous prime is 8400440011. The next prime is 8400440017. The reversal of 8400440012 is 2100440048.

It is a self number, because there is not a number n which added to its sum of digits gives 8400440012.

It is not an unprimeable number, because it can be changed into a prime (8400440011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452489 + ... + 470687.

It is an arithmetic number, because the mean of its divisors is an integer number (617125600).

Almost surely, 2^8400440012 is an apocalyptic number.

It is an amenable number.

8400440012 is a deficient number, since it is larger than the sum of its proper divisors (6410574388).

8400440012 is a wasteful number, since it uses less digits than its factorization.

8400440012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19061 (or 19059 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 8400440012 is about 91653.9143299401. The cubic root of 8400440012 is about 2032.8282071841.

The spelling of 8400440012 in words is "eight billion, four hundred million, four hundred forty thousand, twelve".