20108884 has 6 divisors (see below), whose sum is σ = 35190554. Its totient is φ = 10054440.

The previous prime is 20108873. The next prime is 20108917. The reversal of 20108884 is 48880102.

It can be written as a sum of positive squares in only one way, i.e., 10745284 + 9363600 = 3278^2 + 3060^2 .

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, 2513607 + ... + 2513614.

Almost surely, 2^20108884 is an apocalyptic number.

It is an amenable number.

20108884 is a deficient number, since it is larger than the sum of its proper divisors (15081670).

20108884 is a wasteful number, since it uses less digits than its factorization.

20108884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027225 (or 5027223 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 20108884 is about 4484.2930323519. The cubic root of 20108884 is about 271.9334648389.

Adding to 20108884 its reverse (48880102), we get a palindrome (68988986).

The spelling of 20108884 in words is "twenty million, one hundred eight thousand, eight hundred eighty-four".