84800440040 has 16 divisors (see below), whose sum is σ = 190800990180. Its totient is φ = 33920176000.

The previous prime is 84800440013. The next prime is 84800440057. The reversal of 84800440040 is 4004400848.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81164591236 + 3635848804 = 284894^2 + 60298^2 .

It is a super-2 number, since 2×84800440040² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84800439979 and 84800440006.

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, 1060005461 + ... + 1060005540.

Almost surely, 2^84800440040 is an apocalyptic number.

It is an amenable number.

84800440040 is an abundant number, since it is smaller than the sum of its proper divisors (106000550140).

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

84800440040 is a wasteful number, since it uses less digits than its factorization.

84800440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120011012 (or 2120011008 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 84800440040 its reverse (4004400848), we get a palindrome (88804840888).

The spelling of 84800440040 in words is "eighty-four billion, eight hundred million, four hundred forty thousand, forty".