22142404 has 12 divisors (see below), whose sum is σ = 38810128. Its totient is φ = 11053800.

The previous prime is 22142387. The next prime is 22142411. The reversal of 22142404 is 40424122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242 + ... + 6769.

Almost surely, 2^22142404 is an apocalyptic number.

It is an amenable number.

22142404 is a deficient number, since it is larger than the sum of its proper divisors (16667724).

22142404 is a wasteful number, since it uses less digits than its factorization.

22142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706 (or 8704 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 22142404 is about 4705.5715912097. The cubic root of 22142404 is about 280.8072114716.

Adding to 22142404 its reverse (40424122), we get a palindrome (62566526).

The spelling of 22142404 in words is "twenty-two million, one hundred forty-two thousand, four hundred four".