20922064 has 20 divisors (see below), whose sum is σ = 40746400. Its totient is φ = 10406880.

The previous prime is 20922061. The next prime is 20922073. The reversal of 20922064 is 46022902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20922061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (2037320).

Almost surely, 2^20922064 is an apocalyptic number.

It is an amenable number.

20922064 is a deficient number, since it is larger than the sum of its proper divisors (19824336).

20922064 is a wasteful number, since it uses less digits than its factorization.

20922064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778 (or 6772 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20922064 is about 4574.0642758929. The cubic root of 20922064 is about 275.5506937324.

Adding to 20922064 its reverse (46022902), we get a palindrome (66944966).

The spelling of 20922064 in words is "twenty million, nine hundred twenty-two thousand, sixty-four".