22424146 has 8 divisors (see below), whose sum is σ = 34545420. Its totient is φ = 10909008.

The previous prime is 22424137. The next prime is 22424147. The reversal of 22424146 is 64142422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15721225 + 6702921 = 3965^2 + 2589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22424146.

It is not an unprimeable number, because it can be changed into a prime (22424147) by changing a digit.

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, 151441 + ... + 151588.

Almost surely, 2^22424146 is an apocalyptic number.

22424146 is a deficient number, since it is larger than the sum of its proper divisors (12121274).

22424146 is a wasteful number, since it uses less digits than its factorization.

22424146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303068.

The product of its digits is 3072, while the sum is 25.

The square root of 22424146 is about 4735.4140262494. The cubic root of 22424146 is about 281.9932010500.

Adding to 22424146 its reverse (64142422), we get a palindrome (86566568).

The spelling of 22424146 in words is "twenty-two million, four hundred twenty-four thousand, one hundred forty-six".