20322234 has 12 divisors (see below), whose sum is σ = 44031546. Its totient is φ = 6774072.

The previous prime is 20322233. The next prime is 20322241. The reversal of 20322234 is 43222302.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 99225 = 4497^2 + 315^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1129013 = 20322234 / (2 + 0 + 3 + 2 + 2 + 2 + 3 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20322233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564489 + ... + 564524.

Almost surely, 2^20322234 is an apocalyptic number.

20322234 is an abundant number, since it is smaller than the sum of its proper divisors (23709312).

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

20322234 is a wasteful number, since it uses less digits than its factorization.

20322234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129021 (or 1129018 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20322234 is about 4508.0188553288. The cubic root of 20322234 is about 272.8917978803.

Adding to 20322234 its reverse (43222302), we get a palindrome (63544536).

The spelling of 20322234 in words is "twenty million, three hundred twenty-two thousand, two hundred thirty-four".