82008404 has 24 divisors (see below), whose sum is σ = 148818600. Its totient is φ = 39495680.

The previous prime is 82008383. The next prime is 82008431. The reversal of 82008404 is 40480028.

It can be written as a sum of positive squares in 4 ways, for example, as 6492304 + 75516100 = 2548^2 + 8690^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87812 + ... + 88740.

It is an arithmetic number, because the mean of its divisors is an integer number (6200775).

Almost surely, 2^82008404 is an apocalyptic number.

It is an amenable number.

82008404 is a deficient number, since it is larger than the sum of its proper divisors (66810196).

82008404 is a wasteful number, since it uses less digits than its factorization.

82008404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 82008404 is about 9055.8491595212. The cubic root of 82008404 is about 434.4629899489.

The spelling of 82008404 in words is "eighty-two million, eight thousand, four hundred four".