840400044004 has 12 divisors (see below), whose sum is σ = 1534643558784. Its totient is φ = 401930455784.

The previous prime is 840400043993. The next prime is 840400044059. The reversal of 840400044004 is 400440004048.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4567391452 + ... + 4567391635.

It is an arithmetic number, because the mean of its divisors is an integer number (127886963232).

Almost surely, 2^840400044004 is an apocalyptic number.

It is an amenable number.

840400044004 is a deficient number, since it is larger than the sum of its proper divisors (694243514780).

840400044004 is a wasteful number, since it uses less digits than its factorization.

840400044004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134783114 (or 9134783112 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The spelling of 840400044004 in words is "eight hundred forty billion, four hundred million, forty-four thousand, four".