20020008 has 32 divisors (see below), whose sum is σ = 50997600. Its totient is φ = 6547008.

The previous prime is 20020001. The next prime is 20020019. The reversal of 20020008 is 80002002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20019975 and 20020002.

It is not an unprimeable number, because it can be changed into a prime (20020001) 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, 6598 + ... + 9141.

It is an arithmetic number, because the mean of its divisors is an integer number (1593675).

Almost surely, 2^20020008 is an apocalyptic number.

It is an amenable number.

20020008 is an abundant number, since it is smaller than the sum of its proper divisors (30977592).

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

20020008 is a wasteful number, since it uses less digits than its factorization.

20020008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801 (or 15797 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20020008 is about 4474.3723582196. The cubic root of 20020008 is about 271.5322482714.

The spelling of 20020008 in words is "twenty million, twenty thousand, eight".