20127272 has 32 divisors (see below), whose sum is σ = 41342400. Its totient is φ = 9110400.

The previous prime is 20127259. The next prime is 20127287. The reversal of 20127272 is 27272102.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38372 + ... + 38892.

It is an arithmetic number, because the mean of its divisors is an integer number (1291950).

Almost surely, 2^20127272 is an apocalyptic number.

20127272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20127272 is an abundant number, since it is smaller than the sum of its proper divisors (21215128).

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

20127272 is a wasteful number, since it uses less digits than its factorization.

20127272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 20127272 is about 4486.3428313048. The cubic root of 20127272 is about 272.0163268746.

Adding to 20127272 its reverse (27272102), we get a palindrome (47399374).

The spelling of 20127272 in words is "twenty million, one hundred twenty-seven thousand, two hundred seventy-two".