20833272 has 96 divisors (see below), whose sum is σ = 60387600. Its totient is φ = 6469632.

The previous prime is 20833237. The next prime is 20833277. The reversal of 20833272 is 27233802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20833277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132618 + ... + 132774.

Almost surely, 2^20833272 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 20833272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30193800).

20833272 is an abundant number, since it is smaller than the sum of its proper divisors (39554328).

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

20833272 is a wasteful number, since it uses less digits than its factorization.

20833272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20833272 is about 4564.3479271414. The cubic root of 20833272 is about 275.1603340500.

The spelling of 20833272 in words is "twenty million, eight hundred thirty-three thousand, two hundred seventy-two".