22331242 has 4 divisors (see below), whose sum is σ = 33496866. Its totient is φ = 11165620.

The previous prime is 22331203. The next prime is 22331249. The reversal of 22331242 is 24213322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15046641 + 7284601 = 3879^2 + 2699^2 .

It is not an unprimeable number, because it can be changed into a prime (22331249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5582809 + ... + 5582812.

Almost surely, 2^22331242 is an apocalyptic number.

22331242 is a deficient number, since it is larger than the sum of its proper divisors (11165624).

22331242 is a wasteful number, since it uses less digits than its factorization.

22331242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165623.

The product of its digits is 576, while the sum is 19.

The square root of 22331242 is about 4725.5943541527. The cubic root of 22331242 is about 281.6032261839.

Adding to 22331242 its reverse (24213322), we get a palindrome (46544564).

The spelling of 22331242 in words is "twenty-two million, three hundred thirty-one thousand, two hundred forty-two".