20880908 has 6 divisors (see below), whose sum is σ = 36541596. Its totient is φ = 10440452.

The previous prime is 20880901. The next prime is 20880911. The reversal of 20880908 is 80908802.

It is not an unprimeable number, because it can be changed into a prime (20880901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610110 + ... + 2610117.

It is an arithmetic number, because the mean of its divisors is an integer number (6090266).

Almost surely, 2^20880908 is an apocalyptic number.

It is an amenable number.

20880908 is a deficient number, since it is larger than the sum of its proper divisors (15660688).

20880908 is a wasteful number, since it uses less digits than its factorization.

20880908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220231 (or 5220229 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 20880908 is about 4569.5632176391. The cubic root of 20880908 is about 275.3698956280.

The spelling of 20880908 in words is "twenty million, eight hundred eighty thousand, nine hundred eight".