20822241 has 16 divisors (see below), whose sum is σ = 30716928. Its totient is φ = 12440400.

The previous prime is 20822227. The next prime is 20822257. The reversal of 20822241 is 14222802.

It is a happy number.

It is not a de Polignac number, because 20822241 - 2⁶ = 20822177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20822201) 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, 2101 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (1919808).

Almost surely, 2^20822241 is an apocalyptic number.

It is an amenable number.

20822241 is a deficient number, since it is larger than the sum of its proper divisors (9894687).

20822241 is a wasteful number, since it uses less digits than its factorization.

20822241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 20822241 is about 4563.1393798568. The cubic root of 20822241 is about 275.1117606347. Note that the first 3 decimals are identical.

The spelling of 20822241 in words is "twenty million, eight hundred twenty-two thousand, two hundred forty-one".