20522282 has 16 divisors (see below), whose sum is σ = 33748704. Its totient is φ = 9282000.

The previous prime is 20522251. The next prime is 20522287. The reversal of 20522282 is 28222502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20522287) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2432 + ... + 6852.

It is an arithmetic number, because the mean of its divisors is an integer number (2109294).

Almost surely, 2^20522282 is an apocalyptic number.

20522282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20522282 is a deficient number, since it is larger than the sum of its proper divisors (13226422).

20522282 is a wasteful number, since it uses less digits than its factorization.

20522282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 20522282 is about 4530.1525360632. The cubic root of 20522282 is about 273.7843064252.

Adding to 20522282 its reverse (28222502), we get a palindrome (48744784).

It can be divided in two parts, 2052 and 2282, that added together give a palindrome (4334).

The spelling of 20522282 in words is "twenty million, five hundred twenty-two thousand, two hundred eighty-two".