22304032 has 48 divisors (see below), whose sum is σ = 45444672. Its totient is φ = 10771200.

The previous prime is 22304027. The next prime is 22304033. The reversal of 22304032 is 23040322.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 22303997 and 22304015.

It is not an unprimeable number, because it can be changed into a prime (22304033) 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, 216493 + ... + 216595.

It is an arithmetic number, because the mean of its divisors is an integer number (946764).

Almost surely, 2^22304032 is an apocalyptic number.

It is an amenable number.

22304032 is an abundant number, since it is smaller than the sum of its proper divisors (23140640).

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

22304032 is a wasteful number, since it uses less digits than its factorization.

22304032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22304032 is about 4722.7144736899. The cubic root of 22304032 is about 281.4888044536.

Adding to 22304032 its reverse (23040322), we get a palindrome (45344354).

It can be divided in two parts, 2 and 2304032, that multiplied together give a palindrome (4608064).

The spelling of 22304032 in words is "twenty-two million, three hundred four thousand, thirty-two".