22431004 has 6 divisors (see below), whose sum is σ = 39254264. Its totient is φ = 11215500.

The previous prime is 22430987. The next prime is 22431047. The reversal of 22431004 is 40013422.

It is a congruent number.

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, 2803872 + ... + 2803879.

Almost surely, 2^22431004 is an apocalyptic number.

It is an amenable number.

22431004 is a deficient number, since it is larger than the sum of its proper divisors (16823260).

22431004 is a wasteful number, since it uses less digits than its factorization.

22431004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607755 (or 5607753 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22431004 is about 4736.1380892031. The cubic root of 22431004 is about 282.0219455450.

Adding to 22431004 its reverse (40013422), we get a palindrome (62444426).

The spelling of 22431004 in words is "twenty-two million, four hundred thirty-one thousand, four".