4020085804 has 24 divisors (see below), whose sum is σ = 8098866720. Its totient is φ = 1710316416.

The previous prime is 4020085801. The next prime is 4020085807. The reversal of 4020085804 is 4085800204.

It is an interprime number because it is at equal distance from previous prime (4020085801) and next prime (4020085807).

It is a super-2 number, since 2×4020085804² = 32322179743044652832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4020085801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520159 + ... + 527830.

It is an arithmetic number, because the mean of its divisors is an integer number (337452780).

Almost surely, 2^4020085804 is an apocalyptic number.

It is an amenable number.

4020085804 is an abundant number, since it is smaller than the sum of its proper divisors (4078780916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4020085804 is a wasteful number, since it uses less digits than its factorization.

4020085804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048137 (or 1048135 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 4020085804 is about 63404.1465836423. The cubic root of 4020085804 is about 1590.0536358369.

The spelling of 4020085804 in words is "four billion, twenty million, eighty-five thousand, eight hundred four".