22523230 has 16 divisors (see below), whose sum is σ = 40998960. Its totient is φ = 8907712.

The previous prime is 22523219. The next prime is 22523231. The reversal of 22523230 is 3232522.

It is a junction number, because it is equal to n+sod(n) for n = 22523198 and 22523207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22523231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11764 + ... + 13543.

It is an arithmetic number, because the mean of its divisors is an integer number (2562435).

Almost surely, 2^22523230 is an apocalyptic number.

22523230 is a deficient number, since it is larger than the sum of its proper divisors (18475730).

22523230 is a wasteful number, since it uses less digits than its factorization.

22523230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25403.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 22523230 is about 4745.8645155546. The cubic root of 22523230 is about 282.4079319892.

Adding to 22523230 its reverse (3232522), we get a palindrome (25755752).

The spelling of 22523230 in words is "twenty-two million, five hundred twenty-three thousand, two hundred thirty".