222444040 has 128 divisors (see below), whose sum is σ = 643023360. Its totient is φ = 67313664.

The previous prime is 222444011. The next prime is 222444043. The reversal of 222444040 is 40444222.

It is not an unprimeable number, because it can be changed into a prime (222444043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82392 + ... + 85048.

It is an arithmetic number, because the mean of its divisors is an integer number (5023620).

Almost surely, 2^222444040 is an apocalyptic number.

222444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222444040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321511680).

222444040 is an abundant number, since it is smaller than the sum of its proper divisors (420579320).

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

222444040 is a wasteful number, since it uses less digits than its factorization.

222444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 222444040 is about 14914.5579887572. The cubic root of 222444040 is about 605.9083320845.

Adding to 222444040 its reverse (40444222), we get a palindrome (262888262).

It can be divided in two parts, 2224 and 44040, that added together give a palindrome (46264).

The spelling of 222444040 in words is "two hundred twenty-two million, four hundred forty-four thousand, forty".