2804020681 has 64 divisors (see below), whose sum is σ = 3790209024. Its totient is φ = 2007936000.

The previous prime is 2804020673. The next prime is 2804020693. The reversal of 2804020681 is 1860204082.

It is not a de Polignac number, because 2804020681 - 2³ = 2804020673 is a prime.

It is a super-2 number, since 2×2804020681² = 15725063958951407522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2804020631) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 16790460 + ... + 16790626.

It is an arithmetic number, because the mean of its divisors is an integer number (59222016).

Almost surely, 2^2804020681 is an apocalyptic number.

It is an amenable number.

2804020681 is a deficient number, since it is larger than the sum of its proper divisors (986188343).

2804020681 is a wasteful number, since it uses less digits than its factorization.

2804020681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2804020681 is about 52953.0044567822. The cubic root of 2804020681 is about 1410.1340651828.

The spelling of 2804020681 in words is "two billion, eight hundred four million, twenty thousand, six hundred eighty-one".