20223000 has 256 divisors, whose sum is σ = 80870400. Its totient is φ = 4579200.

The previous prime is 20222987. The next prime is 20223023. The reversal of 20223000 is 32202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 188947 + ... + 189053.

It is an arithmetic number, because the mean of its divisors is an integer number (315900).

Almost surely, 2^20223000 is an apocalyptic number.

20223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40435200).

20223000 is an abundant number, since it is smaller than the sum of its proper divisors (60647400).

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

20223000 is a wasteful number, since it uses less digits than its factorization.

20223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 20223000 is about 4496.9989993328. The cubic root of 20223000 is about 272.4468936714.

Adding to 20223000 its reverse (32202), we get a palindrome (20255202).

The spelling of 20223000 in words is "twenty million, two hundred twenty-three thousand".