22240232 has 32 divisors (see below), whose sum is σ = 47848320. Its totient is φ = 9493440.

The previous prime is 22240223. The next prime is 22240247. The reversal of 22240232 is 23204222.

It is a self number, because there is not a number n which added to its sum of digits gives 22240232.

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, 16778 + ... + 18054.

It is an arithmetic number, because the mean of its divisors is an integer number (1495260).

Almost surely, 2^22240232 is an apocalyptic number.

It is an amenable number.

22240232 is an abundant number, since it is smaller than the sum of its proper divisors (25608088).

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

22240232 is a wasteful number, since it uses less digits than its factorization.

22240232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22240232 is about 4715.9550464355. The cubic root of 22240232 is about 281.2201514332.

Adding to 22240232 its reverse (23204222), we get a palindrome (45444454).

The spelling of 22240232 in words is "twenty-two million, two hundred forty thousand, two hundred thirty-two".