20228322 has 16 divisors (see below), whose sum is σ = 40560480. Its totient is φ = 6725472.

The previous prime is 20228321. The next prime is 20228323. The reversal of 20228322 is 22382202.

It is an interprime number because it is at equal distance from previous prime (20228321) and next prime (20228323).

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 7 ways as a sum of consecutive naturals, for example, 1668 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (2535030).

Almost surely, 2^20228322 is an apocalyptic number.

20228322 is an abundant number, since it is smaller than the sum of its proper divisors (20332158).

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

20228322 is a wasteful number, since it uses less digits than its factorization.

20228322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20228322 is about 4497.5906883575. The cubic root of 20228322 is about 272.4707911346.

The spelling of 20228322 in words is "twenty million, two hundred twenty-eight thousand, three hundred twenty-two".