226642144 has 12 divisors (see below), whose sum is σ = 446201784. Its totient is φ = 113321056.

The previous prime is 226642133. The next prime is 226642177. The reversal of 226642144 is 441246622.

It is a happy number.

It is a super-2 number, since 2×226642144² = 102733322873833472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3541252 + ... + 3541315.

It is an arithmetic number, because the mean of its divisors is an integer number (37183482).

Almost surely, 2^226642144 is an apocalyptic number.

It is an amenable number.

226642144 is a deficient number, since it is larger than the sum of its proper divisors (219559640).

226642144 is an equidigital number, since it uses as much as digits as its factorization.

226642144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7082577 (or 7082569 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 226642144 is about 15054.6386207043. The cubic root of 226642144 is about 609.6962960100.

Adding to 226642144 its reverse (441246622), we get a palindrome (667888766).

The spelling of 226642144 in words is "two hundred twenty-six million, six hundred forty-two thousand, one hundred forty-four".