20880010 has 16 divisors (see below), whose sum is σ = 37812096. Its totient is φ = 8301328.

The previous prime is 20880007. The next prime is 20880043. The reversal of 20880010 is 1008802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20880010.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4582 + ... + 7921.

It is an arithmetic number, because the mean of its divisors is an integer number (2363256).

Almost surely, 2^20880010 is an apocalyptic number.

20880010 is a deficient number, since it is larger than the sum of its proper divisors (16932086).

20880010 is a wasteful number, since it uses less digits than its factorization.

20880010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12677.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 20880010 is about 4569.4649577385. The cubic root of 20880010 is about 275.3659480712.

Adding to 20880010 its reverse (1008802), we get a palindrome (21888812).

The spelling of 20880010 in words is "twenty million, eight hundred eighty thousand, ten".