22306232 has 16 divisors (see below), whose sum is σ = 45041640. Its totient is φ = 10295136.

The previous prime is 22306231. The next prime is 22306241. The reversal of 22306232 is 23260322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22306231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107138 + ... + 107345.

Almost surely, 2^22306232 is an apocalyptic number.

It is an amenable number.

22306232 is an abundant number, since it is smaller than the sum of its proper divisors (22735408).

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

22306232 is a wasteful number, since it uses less digits than its factorization.

22306232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214502 (or 214498 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 22306232 is about 4722.9473848435. The cubic root of 22306232 is about 281.4980592080.

Adding to 22306232 its reverse (23260322), we get a palindrome (45566554).

The spelling of 22306232 in words is "twenty-two million, three hundred six thousand, two hundred thirty-two".