1204085806 has 64 divisors (see below), whose sum is σ = 2317248000. Its totient is φ = 455685120.

The previous prime is 1204085801. The next prime is 1204085807. The reversal of 1204085806 is 6085804021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204085801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807910 + ... + 809398.

It is an arithmetic number, because the mean of its divisors is an integer number (36207000).

Almost surely, 2^1204085806 is an apocalyptic number.

1204085806 is a deficient number, since it is larger than the sum of its proper divisors (1113162194).

1204085806 is a wasteful number, since it uses less digits than its factorization.

1204085806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1204085806 is about 34699.9395676707. The cubic root of 1204085806 is about 1063.8632631632.

Adding to 1204085806 its reverse (6085804021), we get a palindrome (7289889827).

The spelling of 1204085806 in words is "one billion, two hundred four million, eighty-five thousand, eight hundred six".