84412400040 has 48 divisors (see below), whose sum is σ = 274340301300. Its totient is φ = 22509973248.

The previous prime is 84412399999. The next prime is 84412400063. The reversal of 84412400040 is 4000421448.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81762827364 + 2649572676 = 285942^2 + 51474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84412399977 and 84412400013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117239085 + ... + 117239804.

Almost surely, 2^84412400040 is an apocalyptic number.

It is an amenable number.

84412400040 is an abundant number, since it is smaller than the sum of its proper divisors (189927901260).

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

84412400040 is a wasteful number, since it uses less digits than its factorization.

84412400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234478906 (or 234478899 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 84412400040 its reverse (4000421448), we get a palindrome (88412821488).

The spelling of 84412400040 in words is "eighty-four billion, four hundred twelve million, four hundred thousand, forty".