22140004 has 12 divisors (see below), whose sum is σ = 38908800. Its totient is φ = 11023208.

The previous prime is 22139993. The next prime is 22140029. The reversal of 22140004 is 40004122.

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 in 3 ways as a sum of consecutive naturals, for example, 10624 + ... + 12535.

It is an arithmetic number, because the mean of its divisors is an integer number (3242400).

Almost surely, 2^22140004 is an apocalyptic number.

It is an amenable number.

22140004 is a deficient number, since it is larger than the sum of its proper divisors (16768796).

22140004 is a wasteful number, since it uses less digits than its factorization.

22140004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23402 (or 23400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22140004 is about 4705.3165674586. The cubic root of 22140004 is about 280.7970656046.

Adding to 22140004 its reverse (40004122), we get a palindrome (62144126).

The spelling of 22140004 in words is "twenty-two million, one hundred forty thousand, four".