20860272 has 60 divisors (see below), whose sum is σ = 60275904. Its totient is φ = 6727680.

The previous prime is 20860253. The next prime is 20860277. The reversal of 20860272 is 27206802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860277) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2128 + ... + 6800.

Almost surely, 2^20860272 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 20860272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30137952).

20860272 is an abundant number, since it is smaller than the sum of its proper divisors (39415632).

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

20860272 is a wasteful number, since it uses less digits than its factorization.

20860272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718 (or 4709 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20860272 is about 4567.3046756265. The cubic root of 20860272 is about 275.2791523494.

The spelling of 20860272 in words is "twenty million, eight hundred sixty thousand, two hundred seventy-two".