22240412 has 24 divisors (see below), whose sum is σ = 41134800. Its totient is φ = 10492416.

The previous prime is 22240397. The next prime is 22240429. The reversal of 22240412 is 21404222.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26414 + ... + 27242.

It is an arithmetic number, because the mean of its divisors is an integer number (1713950).

Almost surely, 2^22240412 is an apocalyptic number.

It is an amenable number.

22240412 is a deficient number, since it is larger than the sum of its proper divisors (18894388).

22240412 is a wasteful number, since it uses less digits than its factorization.

22240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22240412 is about 4715.9741305482. The cubic root of 22240412 is about 281.2209101107.

Adding to 22240412 its reverse (21404222), we get a palindrome (43644634).

The spelling of 22240412 in words is "twenty-two million, two hundred forty thousand, four hundred twelve".