84004040220 has 48 divisors (see below), whose sum is σ = 235226708640. Its totient is φ = 22399611136.

The previous prime is 84004040209. The next prime is 84004040243. The reversal of 84004040220 is 2204040048.

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, 1126246 + ... + 1198514.

It is an arithmetic number, because the mean of its divisors is an integer number (4900556430).

Almost surely, 2^84004040220 is an apocalyptic number.

It is an amenable number.

84004040220 is an abundant number, since it is smaller than the sum of its proper divisors (151222668420).

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

84004040220 is a wasteful number, since it uses less digits than its factorization.

84004040220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91654 (or 91652 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 84004040220 its reverse (2204040048), we get a palindrome (86208080268).

The spelling of 84004040220 in words is "eighty-four billion, four million, forty thousand, two hundred twenty".