22033830 has 96 divisors (see below), whose sum is σ = 66304224. Its totient is φ = 4644864.

The previous prime is 22033829. The next prime is 22033861. The reversal of 22033830 is 3833022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 22033797 and 22033806.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 18534 + ... + 19686.

It is an arithmetic number, because the mean of its divisors is an integer number (690669).

Almost surely, 2^22033830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22033830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33152112).

22033830 is an abundant number, since it is smaller than the sum of its proper divisors (44270394).

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

22033830 is a wasteful number, since it uses less digits than its factorization.

22033830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22033830 is about 4694.0206646328. The cubic root of 22033830 is about 280.3474852526.

Adding to 22033830 its reverse (3833022), we get a palindrome (25866852).

The spelling of 22033830 in words is "twenty-two million, thirty-three thousand, eight hundred thirty".