20220572 has 6 divisors (see below), whose sum is σ = 35386008. Its totient is φ = 10110284.

The previous prime is 20220517. The next prime is 20220581. The reversal of 20220572 is 27502202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527568 + ... + 2527575.

It is an arithmetic number, because the mean of its divisors is an integer number (5897668).

Almost surely, 2^20220572 is an apocalyptic number.

It is an amenable number.

20220572 is a deficient number, since it is larger than the sum of its proper divisors (15165436).

20220572 is a wasteful number, since it uses less digits than its factorization.

20220572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055147 (or 5055145 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 20220572 is about 4496.7290334197. The cubic root of 20220572 is about 272.4359897908.

Adding to 20220572 its reverse (27502202), we get a palindrome (47722774).

The spelling of 20220572 in words is "twenty million, two hundred twenty thousand, five hundred seventy-two".