20708296 has 16 divisors (see below), whose sum is σ = 44375040. Its totient is φ = 8874960.

The previous prime is 20708287. The next prime is 20708297. The reversal of 20708296 is 69280702.

It is not an unprimeable number, because it can be changed into a prime (20708297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184840 + ... + 184951.

It is an arithmetic number, because the mean of its divisors is an integer number (2773440).

Almost surely, 2^20708296 is an apocalyptic number.

It is an amenable number.

20708296 is an abundant number, since it is smaller than the sum of its proper divisors (23666744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20708296 is a wasteful number, since it uses less digits than its factorization.

20708296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369804 (or 369800 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20708296 is about 4550.6368785039. The cubic root of 20708296 is about 274.6090135170.

Adding to 20708296 its reverse (69280702), we get a palindrome (89988998).

The spelling of 20708296 in words is "twenty million, seven hundred eight thousand, two hundred ninety-six".