20922041 has 4 divisors (see below), whose sum is σ = 23910912. Its totient is φ = 17933172.

The previous prime is 20922029. The next prime is 20922043. The reversal of 20922041 is 14022902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20922041 - 2¹⁴ = 20905657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20922043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1494425 + ... + 1494438.

It is an arithmetic number, because the mean of its divisors is an integer number (5977728).

Almost surely, 2^20922041 is an apocalyptic number.

It is an amenable number.

20922041 is a deficient number, since it is larger than the sum of its proper divisors (2988871).

20922041 is an equidigital number, since it uses as much as digits as its factorization.

20922041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988870.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20922041 is about 4574.0617617168. The cubic root of 20922041 is about 275.5505927597.

Adding to 20922041 its reverse (14022902), we get a palindrome (34944943).

The spelling of 20922041 in words is "twenty million, nine hundred twenty-two thousand, forty-one".