800040884440 has 64 divisors (see below), whose sum is σ = 2146693570560. Its totient is φ = 262373654400.

The previous prime is 800040884399. The next prime is 800040884471. The reversal of 800040884440 is 44488040008.

It is a super-2 number, since 2×800040884440² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 800040884393 and 800040884402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62108536 + ... + 62121415.

It is an arithmetic number, because the mean of its divisors is an integer number (33542087040).

Almost surely, 2^800040884440 is an apocalyptic number.

It is an amenable number.

800040884440 is an abundant number, since it is smaller than the sum of its proper divisors (1346652686120).

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

800040884440 is a wasteful number, since it uses less digits than its factorization.

800040884440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124229992 (or 124229988 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 800040884440 in words is "eight hundred billion, forty million, eight hundred eighty-four thousand, four hundred forty".