20027996 has 12 divisors (see below), whose sum is σ = 35231952. Its totient is φ = 9961728.

The previous prime is 20027993. The next prime is 20027999. The reversal of 20027996 is 69972002.

It is an interprime number because it is at equal distance from previous prime (20027993) and next prime (20027999).

It is a super-2 number, since 2×20027996² = 802241247552032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20027993) 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, 12200 + ... + 13743.

It is an arithmetic number, because the mean of its divisors is an integer number (2935996).

Almost surely, 2^20027996 is an apocalyptic number.

It is an amenable number.

20027996 is a deficient number, since it is larger than the sum of its proper divisors (15203956).

20027996 is a wasteful number, since it uses less digits than its factorization.

20027996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26140 (or 26138 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 20027996 is about 4475.2649083602. The cubic root of 20027996 is about 271.5683573343.

Adding to 20027996 its reverse (69972002), we get a palindrome (89999998).

The spelling of 20027996 in words is "twenty million, twenty-seven thousand, nine hundred ninety-six".