20228324 has 12 divisors (see below), whose sum is σ = 35658924. Its totient is φ = 10040064.

The previous prime is 20228323. The next prime is 20228333. The reversal of 20228324 is 42382202.

It can be written as a sum of positive squares in 2 ways, for example, as 17372224 + 2856100 = 4168^2 + 1690^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20228324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20228321) 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 3 ways as a sum of consecutive naturals, for example, 17909 + ... + 19004.

It is an arithmetic number, because the mean of its divisors is an integer number (2971577).

Almost surely, 2^20228324 is an apocalyptic number.

It is an amenable number.

20228324 is a deficient number, since it is larger than the sum of its proper divisors (15430600).

20228324 is a wasteful number, since it uses less digits than its factorization.

20228324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37054 (or 37052 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20228324 is about 4497.5909106987. The cubic root of 20228324 is about 272.4708001145.

The spelling of 20228324 in words is "twenty million, two hundred twenty-eight thousand, three hundred twenty-four".