20272760 has 32 divisors (see below), whose sum is σ = 47088000. Its totient is φ = 7847040.

The previous prime is 20272751. The next prime is 20272771. The reversal of 20272760 is 6727202.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6935 + ... + 9414.

It is an arithmetic number, because the mean of its divisors is an integer number (1471500).

Almost surely, 2^20272760 is an apocalyptic number.

20272760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20272760 is an abundant number, since it is smaller than the sum of its proper divisors (26815240).

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

20272760 is a wasteful number, since it uses less digits than its factorization.

20272760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391 (or 16387 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20272760 is about 4502.5281787014. The cubic root of 20272760 is about 272.6701683809.

Adding to 20272760 its reverse (6727202), we get a palindrome (26999962).

The spelling of 20272760 in words is "twenty million, two hundred seventy-two thousand, seven hundred sixty".