222544040 has 32 divisors (see below), whose sum is σ = 516879360. Its totient is φ = 86145600.

The previous prime is 222544037. The next prime is 222544073. The reversal of 222544040 is 40445222.

222544040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222543997 and 222544015.

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, 88496 + ... + 90975.

It is an arithmetic number, because the mean of its divisors is an integer number (16152480).

Almost surely, 2^222544040 is an apocalyptic number.

222544040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222544040 is an abundant number, since it is smaller than the sum of its proper divisors (294335320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222544040 is a wasteful number, since it uses less digits than its factorization.

222544040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179513 (or 179509 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 222544040 is about 14917.9100412893. The cubic root of 222544040 is about 605.9991141015. Note that the first 3 decimals are identical.

Adding to 222544040 its reverse (40445222), we get a palindrome (262989262).

The spelling of 222544040 in words is "two hundred twenty-two million, five hundred forty-four thousand, forty".