4020918804 has 72 divisors (see below), whose sum is σ = 11640003648. Its totient is φ = 1146458880.

The previous prime is 4020918799. The next prime is 4020918827. The reversal of 4020918804 is 4088190204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 107484 + ... + 139980.

Almost surely, 2^4020918804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020918804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5820001824).

4020918804 is an abundant number, since it is smaller than the sum of its proper divisors (7619084844).

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

4020918804 is a wasteful number, since it uses less digits than its factorization.

4020918804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33005 (or 33000 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 4020918804 is about 63410.7152143863. The cubic root of 4020918804 is about 1590.1634529958.

The spelling of 4020918804 in words is "four billion, twenty million, nine hundred eighteen thousand, eight hundred four".