20450572 has 12 divisors (see below), whose sum is σ = 36242080. Its totient is φ = 10095696.

The previous prime is 20450569. The next prime is 20450579. The reversal of 20450572 is 27505402.

It is not an unprimeable number, because it can be changed into a prime (20450579) 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, 32043 + ... + 32674.

Almost surely, 2^20450572 is an apocalyptic number.

It is an amenable number.

20450572 is a deficient number, since it is larger than the sum of its proper divisors (15791508).

20450572 is a wasteful number, since it uses less digits than its factorization.

20450572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64800 (or 64798 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 20450572 is about 4522.2308654026. The cubic root of 20450572 is about 273.4650439323.

Adding to 20450572 its reverse (27505402), we get a palindrome (47955974).

The spelling of 20450572 in words is "twenty million, four hundred fifty thousand, five hundred seventy-two".