22450156 has 6 divisors (see below), whose sum is σ = 39287780. Its totient is φ = 11225076.

The previous prime is 22450151. The next prime is 22450163. The reversal of 22450156 is 65105422.

It is a self number, because there is not a number n which added to its sum of digits gives 22450156.

It is not an unprimeable number, because it can be changed into a prime (22450151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2806266 + ... + 2806273.

Almost surely, 2^22450156 is an apocalyptic number.

It is an amenable number.

22450156 is a deficient number, since it is larger than the sum of its proper divisors (16837624).

22450156 is a wasteful number, since it uses less digits than its factorization.

22450156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612543 (or 5612541 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 22450156 is about 4738.1595583095. The cubic root of 22450156 is about 282.1021878707.

Adding to 22450156 its reverse (65105422), we get a palindrome (87555578).

The spelling of 22450156 in words is "twenty-two million, four hundred fifty thousand, one hundred fifty-six".