20223432 has 96 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 6609600.

The previous prime is 20223403. The next prime is 20223443. The reversal of 20223432 is 23432202.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 23 ways as a sum of consecutive naturals, for example, 196293 + ... + 196395.

It is an arithmetic number, because the mean of its divisors is an integer number (603330).

Almost surely, 2^20223432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28959840).

20223432 is an abundant number, since it is smaller than the sum of its proper divisors (37696248).

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

20223432 is a wasteful number, since it uses less digits than its factorization.

20223432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 209 counting only the distinct ones).

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

The square root of 20223432 is about 4497.0470311083. The cubic root of 20223432 is about 272.4488336444.

Adding to 20223432 its reverse (23432202), we get a palindrome (43655634).

The spelling of 20223432 in words is "twenty million, two hundred twenty-three thousand, four hundred thirty-two".