20888798 has 24 divisors (see below), whose sum is σ = 37303992. Its totient is φ = 8742384.

The previous prime is 20888797. The next prime is 20888863. The reversal of 20888798 is 89788802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20888797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1736 + ... + 6692.

It is an arithmetic number, because the mean of its divisors is an integer number (1554333).

Almost surely, 2^20888798 is an apocalyptic number.

20888798 is a deficient number, since it is larger than the sum of its proper divisors (16415194).

20888798 is a wasteful number, since it uses less digits than its factorization.

20888798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 20888798 is about 4570.4264571263. The cubic root of 20888798 is about 275.4045747534.

The spelling of 20888798 in words is "twenty million, eight hundred eighty-eight thousand, seven hundred ninety-eight".