22303442 has 16 divisors (see below), whose sum is σ = 38357952. Its totient is φ = 9527760.

The previous prime is 22303433. The next prime is 22303447. The reversal of 22303442 is 24430322.

It is not an unprimeable number, because it can be changed into a prime (22303447) 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 7 ways as a sum of consecutive naturals, for example, 2228 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (2397372).

Almost surely, 2^22303442 is an apocalyptic number.

22303442 is a deficient number, since it is larger than the sum of its proper divisors (16054510).

22303442 is a wasteful number, since it uses less digits than its factorization.

22303442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 22303442 is about 4722.6520091999. The cubic root of 22303442 is about 281.4863223933.

Adding to 22303442 its reverse (24430322), we get a palindrome (46733764).

The spelling of 22303442 in words is "twenty-two million, three hundred three thousand, four hundred forty-two".