20022064 has 20 divisors (see below), whose sum is σ = 40131360. Its totient is φ = 9665600.

The previous prime is 20022059. The next prime is 20022089. The reversal of 20022064 is 46022002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21112 + ... + 22039.

It is an arithmetic number, because the mean of its divisors is an integer number (2006568).

Almost surely, 2^20022064 is an apocalyptic number.

It is an amenable number.

20022064 is an abundant number, since it is smaller than the sum of its proper divisors (20109296).

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

20022064 is a wasteful number, since it uses less digits than its factorization.

20022064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43188 (or 43182 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20022064 is about 4474.6021052156. The cubic root of 20022064 is about 271.5415431593.

Adding to 20022064 its reverse (46022002), we get a palindrome (66044066).

The spelling of 20022064 in words is "twenty million, twenty-two thousand, sixty-four".