222042460 has 72 divisors (see below), whose sum is σ = 503911296. Its totient is φ = 82093440.

The previous prime is 222042449. The next prime is 222042467. The reversal of 222042460 is 64240222.

222042460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222042467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327642 + ... + 328318.

It is an arithmetic number, because the mean of its divisors is an integer number (6998768).

Almost surely, 2^222042460 is an apocalyptic number.

222042460 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 222042460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251955648).

222042460 is an abundant number, since it is smaller than the sum of its proper divisors (281868836).

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

222042460 is a wasteful number, since it uses less digits than its factorization.

222042460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 222042460 is about 14901.0892219327. The cubic root of 222042460 is about 605.5434954002.

Adding to 222042460 its reverse (64240222), we get a palindrome (286282682).

The spelling of 222042460 in words is "two hundred twenty-two million, forty-two thousand, four hundred sixty".