20081796 has 24 divisors (see below), whose sum is σ = 53551680. Its totient is φ = 5737632.

The previous prime is 20081779. The next prime is 20081797. The reversal of 20081796 is 69718002.

It is not an unprimeable number, because it can be changed into a prime (20081797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119451 + ... + 119618.

It is an arithmetic number, because the mean of its divisors is an integer number (2231320).

Almost surely, 2^20081796 is an apocalyptic number.

It is an amenable number.

20081796 is an abundant number, since it is smaller than the sum of its proper divisors (33469884).

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

20081796 is a wasteful number, since it uses less digits than its factorization.

20081796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239083 (or 239081 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 20081796 is about 4481.2716945082. The cubic root of 20081796 is about 271.8113058348.

Adding to 20081796 its reverse (69718002), we get a palindrome (89799798).

The spelling of 20081796 in words is "twenty million, eighty-one thousand, seven hundred ninety-six".