20822960 has 80 divisors (see below), whose sum is σ = 52309152. Its totient is φ = 7680000.

The previous prime is 20822941. The next prime is 20822969. The reversal of 20822960 is 6922802.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (20822969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82835 + ... + 83085.

Almost surely, 2^20822960 is an apocalyptic number.

20822960 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 20822960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26154576).

20822960 is an abundant number, since it is smaller than the sum of its proper divisors (31486192).

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

20822960 is a wasteful number, since it uses less digits than its factorization.

20822960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20822960 is about 4563.2181626567. The cubic root of 20822960 is about 275.1149271699.

The spelling of 20822960 in words is "twenty million, eight hundred twenty-two thousand, nine hundred sixty".