20085008 has 10 divisors (see below), whose sum is σ = 38914734. Its totient is φ = 10042496.

The previous prime is 20084989. The next prime is 20085017. The reversal of 20085008 is 80058002.

It can be written as a sum of positive squares in only one way, i.e., 19784704 + 300304 = 4448^2 + 548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627641 + ... + 627672.

Almost surely, 2^20085008 is an apocalyptic number.

It is an amenable number.

20085008 is a deficient number, since it is larger than the sum of its proper divisors (18829726).

20085008 is a wasteful number, since it uses less digits than its factorization.

20085008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255321 (or 1255315 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20085008 is about 4481.6300605918. The cubic root of 20085008 is about 271.8257967593.

The spelling of 20085008 in words is "twenty million, eighty-five thousand, eight".