8021830004 has 12 divisors (see below), whose sum is σ = 14043365700. Its totient is φ = 4009439808.

The previous prime is 8021829989. The next prime is 8021830007. The reversal of 8021830004 is 4000381208.

It can be written as a sum of positive squares in 2 ways, for example, as 7796890000 + 224940004 = 88300^2 + 14998^2 .

It is a super-2 number, since 2×8021830004² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021830007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356519 + ... + 378350.

It is an arithmetic number, because the mean of its divisors is an integer number (1170280475).

Almost surely, 2^8021830004 is an apocalyptic number.

It is an amenable number.

8021830004 is a deficient number, since it is larger than the sum of its proper divisors (6021535696).

8021830004 is a wasteful number, since it uses less digits than its factorization.

8021830004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737602 (or 737600 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 8021830004 is about 89564.6693959175. The cubic root of 8021830004 is about 2001.8175148196.

The spelling of 8021830004 in words is "eight billion, twenty-one million, eight hundred thirty thousand, four".