20963200 has 48 divisors (see below), whose sum is σ = 51793560. Its totient is φ = 8384000.

The previous prime is 20963197. The next prime is 20963219. The reversal of 20963200 is 236902.

It is a congruent number.

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, 76 + ... + 6475.

Almost surely, 2^20963200 is an apocalyptic number.

20963200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20963200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25896780).

20963200 is an abundant number, since it is smaller than the sum of its proper divisors (30830360).

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

20963200 is an equidigital number, since it uses as much as digits as its factorization.

20963200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575 (or 6558 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20963200 is about 4578.5587251885. The cubic root of 20963200 is about 275.7311672048.

The spelling of 20963200 in words is "twenty million, nine hundred sixty-three thousand, two hundred".