20103808 has 16 divisors (see below), whose sum is σ = 40050810. Its totient is φ = 10051840.

The previous prime is 20103803. The next prime is 20103821. The reversal of 20103808 is 80830102.

It can be written as a sum of positive squares in only one way, i.e., 14684224 + 5419584 = 3832^2 + 2328^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×20103808² = 808326192201728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20103803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78403 + ... + 78658.

Almost surely, 2^20103808 is an apocalyptic number.

It is an amenable number.

20103808 is a deficient number, since it is larger than the sum of its proper divisors (19947002).

20103808 is an equidigital number, since it uses as much as digits as its factorization.

20103808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157075 (or 157063 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 20103808 is about 4483.7270211287. The cubic root of 20103808 is about 271.9105819110.

The spelling of 20103808 in words is "twenty million, one hundred three thousand, eight hundred eight".