20275712 has 30 divisors (see below), whose sum is σ = 40716423. Its totient is φ = 10086912.

The previous prime is 20275693. The next prime is 20275769. The reversal of 20275712 is 21757202.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 10137856 + 10137856 = 3184^2 + 3184^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3184.

It is a super-2 number, since 2×20275712² = 822208994213888, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 101789 + ... + 101987.

Almost surely, 2^20275712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20275712

20275712 is an abundant number, since it is smaller than the sum of its proper divisors (20440711).

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

20275712 is an frugal number, since it uses more digits than its factorization.

20275712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 20275712 is about 4502.8559825959. The cubic root of 20275712 is about 272.6834026136.

The spelling of 20275712 in words is "twenty million, two hundred seventy-five thousand, seven hundred twelve".