1684436882 has 6 divisors (see below), whose sum is σ = 2526742389. Its totient is φ = 842189420.

The previous prime is 1684436881. The next prime is 1684436909. The reversal of 1684436882 is 2886344861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1057485361 + 626951521 = 32519^2 + 25039^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=29021.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1684436882.

It is not an unprimeable number, because it can be changed into a prime (1684436881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 43532 + ... + 72552.

Almost surely, 2^1684436882 is an apocalyptic number.

1684436882 is a deficient number, since it is larger than the sum of its proper divisors (842305507).

1684436882 is an frugal number, since it uses more digits than its factorization.

1684436882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58044 (or 29023 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 1684436882 is about 41041.8917936296. The cubic root of 1684436882 is about 1189.8299976059.

Multiplying 1684436882 by its sum of digits (50), we get a square (84221844100 = 290210²).

The spelling of 1684436882 in words is "one billion, six hundred eighty-four million, four hundred thirty-six thousand, eight hundred eighty-two".