20102008 has 16 divisors (see below), whose sum is σ = 38331000. Its totient is φ = 9880416.

The previous prime is 20102003. The next prime is 20102009. The reversal of 20102008 is 80020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102003) 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, 20823 + ... + 21766.

Almost surely, 2^20102008 is an apocalyptic number.

It is an amenable number.

20102008 is a deficient number, since it is larger than the sum of its proper divisors (18228992).

20102008 is a wasteful number, since it uses less digits than its factorization.

20102008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42654 (or 42650 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20102008 is about 4483.5262907671. The cubic root of 20102008 is about 271.9024664724.

The spelling of 20102008 in words is "twenty million, one hundred two thousand, eight".