22203146 has 16 divisors (see below), whose sum is σ = 38688000. Its totient is φ = 9359280.

The previous prime is 22203127. The next prime is 22203163. The reversal of 22203146 is 64130222.

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 7 ways as a sum of consecutive naturals, for example, 12146 + ... + 13853.

It is an arithmetic number, because the mean of its divisors is an integer number (2418000).

Almost surely, 2^22203146 is an apocalyptic number.

22203146 is a deficient number, since it is larger than the sum of its proper divisors (16484854).

22203146 is a wasteful number, since it uses less digits than its factorization.

22203146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26069.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22203146 is about 4712.0214345862. The cubic root of 22203146 is about 281.0637511920.

Adding to 22203146 its reverse (64130222), we get a palindrome (86333368).

The spelling of 22203146 in words is "twenty-two million, two hundred three thousand, one hundred forty-six".