20272716 has 18 divisors (see below), whose sum is σ = 51245012. Its totient is φ = 6757560.

The previous prime is 20272699. The next prime is 20272741. The reversal of 20272716 is 61727202.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 20272716.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281530 + ... + 281601.

Almost surely, 2^20272716 is an apocalyptic number.

It is an amenable number.

20272716 is an abundant number, since it is smaller than the sum of its proper divisors (30972296).

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

20272716 is a wasteful number, since it uses less digits than its factorization.

20272716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563141 (or 563136 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20272716 is about 4502.5232925550. The cubic root of 20272716 is about 272.6699711129.

Adding to 20272716 its reverse (61727202), we get a palindrome (81999918).

The spelling of 20272716 in words is "twenty million, two hundred seventy-two thousand, seven hundred sixteen".