8210402008 has 32 divisors (see below), whose sum is σ = 16305634800. Its totient is φ = 3862397952.

The previous prime is 8210401993. The next prime is 8210402021. The reversal of 8210402008 is 8002040128.

It is a super-2 number, since 2×8210402008² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471391 + ... + 488497.

Almost surely, 2^8210402008 is an apocalyptic number.

It is an amenable number.

8210402008 is a deficient number, since it is larger than the sum of its proper divisors (8095232792).

8210402008 is a wasteful number, since it uses less digits than its factorization.

8210402008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20659 (or 20655 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 8210402008 is about 90611.2686590360. The cubic root of 8210402008 is about 2017.3819961312.

The spelling of 8210402008 in words is "eight billion, two hundred ten million, four hundred two thousand, eight".