222040600 has 96 divisors (see below), whose sum is σ = 542822400. Its totient is φ = 84355200.

The previous prime is 222040591. The next prime is 222040601. The reversal of 222040600 is 6040222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222040601) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 365497 + ... + 366103.

It is an arithmetic number, because the mean of its divisors is an integer number (5654400).

Almost surely, 2^222040600 is an apocalyptic number.

222040600 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 222040600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271411200).

222040600 is an abundant number, since it is smaller than the sum of its proper divisors (320781800).

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

222040600 is a wasteful number, since it uses less digits than its factorization.

222040600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222040600 is about 14901.0268102571. The cubic root of 222040600 is about 605.5418045614.

Adding to 222040600 its reverse (6040222), we get a palindrome (228080822).

The spelling of 222040600 in words is "two hundred twenty-two million, forty thousand, six hundred".