840084484 has 6 divisors (see below), whose sum is σ = 1470147854. Its totient is φ = 420042240.

The previous prime is 840084467. The next prime is 840084521. The reversal of 840084484 is 484480048.

It can be written as a sum of positive squares in only one way, i.e., 839724484 + 360000 = 28978^2 + 600^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010557 + ... + 105010564.

Almost surely, 2^840084484 is an apocalyptic number.

It is an amenable number.

840084484 is a deficient number, since it is larger than the sum of its proper divisors (630063370).

840084484 is a wasteful number, since it uses less digits than its factorization.

840084484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210021125 (or 210021123 counting only the distinct ones).

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

The square root of 840084484 is about 28984.2109432015. The cubic root of 840084484 is about 943.5704275154.

The spelling of 840084484 in words is "eight hundred forty million, eighty-four thousand, four hundred eighty-four".