404872210082 has 6 divisors (see below), whose sum is σ = 607309664913. Its totient is φ = 202435655112.

The previous prime is 404872210079. The next prime is 404872210123. The reversal of 404872210082 is 280012278404.

It can be written as a sum of positive squares in 2 ways, for example, as 287777529601 + 117094680481 = 536449^2 + 342191^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=449929.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 674894 + ... + 1124822.

Almost surely, 2^404872210082 is an apocalyptic number.

404872210082 is a deficient number, since it is larger than the sum of its proper divisors (202437454831).

404872210082 is an frugal number, since it uses more digits than its factorization.

404872210082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899860 (or 449931 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

Adding to 404872210082 its reverse (280012278404), we get a palindrome (684884488486).

The spelling of 404872210082 in words is "four hundred four billion, eight hundred seventy-two million, two hundred ten thousand, eighty-two".