22432005 has 32 divisors (see below), whose sum is σ = 40348800. Its totient is φ = 11822976.

The previous prime is 22432001. The next prime is 22432021. The reversal of 22432005 is 50023422.

It is not a de Polignac number, because 22432005 - 2² = 22432001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11082 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (1260900).

Almost surely, 2^22432005 is an apocalyptic number.

It is an amenable number.

22432005 is a deficient number, since it is larger than the sum of its proper divisors (17916795).

22432005 is a wasteful number, since it uses less digits than its factorization.

22432005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1964 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22432005 is about 4736.2437648415. The cubic root of 22432005 is about 282.0261406279.

Adding to 22432005 its reverse (50023422), we get a palindrome (72455427).

The spelling of 22432005 in words is "twenty-two million, four hundred thirty-two thousand, five".