222004040 has 48 divisors (see below), whose sum is σ = 505480500. Its totient is φ = 87748608.

The previous prime is 222004039. The next prime is 222004061. The reversal of 222004040 is 40400222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11115556 + 210888484 = 3334^2 + 14522^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1150184 + ... + 1150376.

Almost surely, 2^222004040 is an apocalyptic number.

222004040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222004040 is an abundant number, since it is smaller than the sum of its proper divisors (283476460).

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

222004040 is a wasteful number, since it uses less digits than its factorization.

222004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222004040 is about 14899.7999986577. The cubic root of 222004040 is about 605.5085676615.

Adding to 222004040 its reverse (40400222), we get a palindrome (262404262).

The spelling of 222004040 in words is "two hundred twenty-two million, four thousand, forty".