40403699984 has 20 divisors (see below), whose sum is σ = 81685742016. Its totient is φ = 19323508512.

The previous prime is 40403699981. The next prime is 40403699993. The reversal of 40403699984 is 48999630404.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40403699981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54895964 + ... + 54896699.

Almost surely, 2^40403699984 is an apocalyptic number.

It is an amenable number.

40403699984 is an abundant number, since it is smaller than the sum of its proper divisors (41282042032).

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

40403699984 is a wasteful number, since it uses less digits than its factorization.

40403699984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109792694 (or 109792688 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 40403699984 in words is "forty billion, four hundred three million, six hundred ninety-nine thousand, nine hundred eighty-four".