22030524 has 72 divisors (see below), whose sum is σ = 57696912. Its totient is φ = 7084800.

The previous prime is 22030523. The next prime is 22030531. The reversal of 22030524 is 42503022.

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

It is a junction number, because it is equal to n+sod(n) for n = 22030497 and 22030506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22030523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218074 + ... + 218174.

It is an arithmetic number, because the mean of its divisors is an integer number (801346).

Almost surely, 2^22030524 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 22030524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28848456).

22030524 is an abundant number, since it is smaller than the sum of its proper divisors (35666388).

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

22030524 is a wasteful number, since it uses less digits than its factorization.

22030524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22030524 is about 4693.6685012898. The cubic root of 22030524 is about 280.3334632518. Note that the first 3 decimals are identical.

Adding to 22030524 its reverse (42503022), we get a palindrome (64533546).

The spelling of 22030524 in words is "twenty-two million, thirty thousand, five hundred twenty-four".