22504530 has 16 divisors (see below), whose sum is σ = 54010944. Its totient is φ = 6001200.

The previous prime is 22504529. The next prime is 22504541. The reversal of 22504530 is 3540522.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22504497 and 22504506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375046 + ... + 375105.

It is an arithmetic number, because the mean of its divisors is an integer number (3375684).

Almost surely, 2^22504530 is an apocalyptic number.

22504530 is an abundant number, since it is smaller than the sum of its proper divisors (31506414).

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

22504530 is a wasteful number, since it uses less digits than its factorization.

22504530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750161.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 22504530 is about 4743.8939701473. The cubic root of 22504530 is about 282.3297535850.

The spelling of 22504530 in words is "twenty-two million, five hundred four thousand, five hundred thirty".