22231352 has 32 divisors (see below), whose sum is σ = 48973680. Its totient is φ = 9327360.

The previous prime is 22231351. The next prime is 22231361. The reversal of 22231352 is 25313222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231351) 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, 8573 + ... + 10860.

Almost surely, 2^22231352 is an apocalyptic number.

22231352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22231352 is an abundant number, since it is smaller than the sum of its proper divisors (26742328).

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

22231352 is a wasteful number, since it uses less digits than its factorization.

22231352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463 (or 19459 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 22231352 is about 4715.0134676372. The cubic root of 22231352 is about 281.1827182598.

Adding to 22231352 its reverse (25313222), we get a palindrome (47544574).

The spelling of 22231352 in words is "twenty-two million, two hundred thirty-one thousand, three hundred fifty-two".