222642054 has 64 divisors (see below), whose sum is σ = 510209280. Its totient is φ = 71922240.

The previous prime is 222642053. The next prime is 222642067. The reversal of 222642054 is 450246222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222642053) 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, 502357 + ... + 502799.

It is an arithmetic number, because the mean of its divisors is an integer number (7972020).

Almost surely, 2^222642054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222642054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255104640).

222642054 is an abundant number, since it is smaller than the sum of its proper divisors (287567226).

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

222642054 is a wasteful number, since it uses less digits than its factorization.

222642054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 222642054 is about 14921.1947913027. The cubic root of 222642054 is about 606.0880668011.

Adding to 222642054 its reverse (450246222), we get a palindrome (672888276).

The spelling of 222642054 in words is "two hundred twenty-two million, six hundred forty-two thousand, fifty-four".