22000230 has 96 divisors (see below), whose sum is σ = 66852864. Its totient is φ = 4915008.

The previous prime is 22000211. The next prime is 22000243. The reversal of 22000230 is 3200022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29239 + ... + 29981.

It is an arithmetic number, because the mean of its divisors is an integer number (696384).

Almost surely, 2^22000230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33426432).

22000230 is an abundant number, since it is smaller than the sum of its proper divisors (44852634).

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

22000230 is a wasteful number, since it uses less digits than its factorization.

22000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 807 counting only the distinct ones).

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

The square root of 22000230 is about 4690.4402778417. The cubic root of 22000230 is about 280.2049095304.

Adding to 22000230 its reverse (3200022), we get a palindrome (25200252).

The spelling of 22000230 in words is "twenty-two million, two hundred thirty", and thus it is an aban number.