222044240 has 40 divisors (see below), whose sum is σ = 563187168. Its totient is φ = 80743040.

The previous prime is 222044239. The next prime is 222044261. The reversal of 222044240 is 42440222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125282 + ... + 127041.

Almost surely, 2^222044240 is an apocalyptic number.

222044240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222044240 is an abundant number, since it is smaller than the sum of its proper divisors (341142928).

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

222044240 is a wasteful number, since it uses less digits than its factorization.

222044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252347 (or 252341 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 222044240 is about 14901.1489489905. The cubic root of 222044240 is about 605.5451135060.

Adding to 222044240 its reverse (42440222), we get a palindrome (264484462).

The spelling of 222044240 in words is "two hundred twenty-two million, forty-four thousand, two hundred forty".