20752896 has 80 divisors (see below), whose sum is σ = 56469600. Its totient is φ = 6770688.

The previous prime is 20752891. The next prime is 20752933. The reversal of 20752896 is 69825702.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20752891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90510 + ... + 90738.

It is an arithmetic number, because the mean of its divisors is an integer number (705870).

Almost surely, 2^20752896 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 20752896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28234800).

20752896 is an abundant number, since it is smaller than the sum of its proper divisors (35716704).

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

20752896 is an equidigital number, since it uses as much as digits as its factorization.

20752896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 20752896 is about 4555.5346557786. The cubic root of 20752896 is about 274.8060163651.

The spelling of 20752896 in words is "twenty million, seven hundred fifty-two thousand, eight hundred ninety-six".