20422052 has 12 divisors (see below), whose sum is σ = 40844160. Its totient is φ = 8752296.

The previous prime is 20422043. The next prime is 20422079. The reversal of 20422052 is 25022402.

20422052 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20422052.

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, 364652 + ... + 364707.

It is an arithmetic number, because the mean of its divisors is an integer number (3403680).

Almost surely, 2^20422052 is an apocalyptic number.

It is an amenable number.

20422052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20422052 is a wasteful number, since it uses less digits than its factorization.

20422052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729370 (or 729368 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20422052 is about 4519.0764543212. The cubic root of 20422052 is about 273.3378616475.

Adding to 20422052 its reverse (25022402), we get a palindrome (45444454).

The spelling of 20422052 in words is "twenty million, four hundred twenty-two thousand, fifty-two".