20080396 has 18 divisors (see below), whose sum is σ = 40878348. Its totient is φ = 8605800.

The previous prime is 20080391. The next prime is 20080409. The reversal of 20080396 is 69308002.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (20080391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51030 + ... + 51421.

Almost surely, 2^20080396 is an apocalyptic number.

It is an amenable number.

20080396 is an abundant number, since it is smaller than the sum of its proper divisors (20797952).

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

20080396 is a wasteful number, since it uses less digits than its factorization.

20080396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102469 (or 102460 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20080396 is about 4481.1154861262. The cubic root of 20080396 is about 271.8049892571.

Adding to 20080396 its reverse (69308002), we get a palindrome (89388398).

The spelling of 20080396 in words is "twenty million, eighty thousand, three hundred ninety-six".