22407332 has 6 divisors (see below), whose sum is σ = 39212838. Its totient is φ = 11203664.

The previous prime is 22407331. The next prime is 22407347. The reversal of 22407332 is 23370422.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 10394176 = 3466^2 + 3224^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22407298 and 22407307.

It is not an unprimeable number, because it can be changed into a prime (22407331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2800913 + ... + 2800920.

It is an arithmetic number, because the mean of its divisors is an integer number (6535473).

Almost surely, 2^22407332 is an apocalyptic number.

It is an amenable number.

22407332 is a deficient number, since it is larger than the sum of its proper divisors (16805506).

22407332 is a wasteful number, since it uses less digits than its factorization.

22407332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601837 (or 5601835 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 22407332 is about 4733.6383469800. The cubic root of 22407332 is about 281.9227023526.

Adding to 22407332 its reverse (23370422), we get a palindrome (45777754).

The spelling of 22407332 in words is "twenty-two million, four hundred seven thousand, three hundred thirty-two".