22423432 has 8 divisors (see below), whose sum is σ = 42043950. Its totient is φ = 11211712.

The previous prime is 22423403. The next prime is 22423441. The reversal of 22423432 is 23432422.

It can be written as a sum of positive squares in only one way, i.e., 15100996 + 7322436 = 3886^2 + 2706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401457 + ... + 1401472.

Almost surely, 2^22423432 is an apocalyptic number.

It is an amenable number.

22423432 is a deficient number, since it is larger than the sum of its proper divisors (19620518).

22423432 is a wasteful number, since it uses less digits than its factorization.

22423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802935 (or 2802931 counting only the distinct ones).

The product of its digits is 2304, while the sum is 22.

The square root of 22423432 is about 4735.3386362540. The cubic root of 22423432 is about 281.9902080667.

Adding to 22423432 its reverse (23432422), we get a palindrome (45855854).

The spelling of 22423432 in words is "twenty-two million, four hundred twenty-three thousand, four hundred thirty-two".