222663450 has 96 divisors (see below), whose sum is σ = 605050560. Its totient is φ = 53939200.

The previous prime is 222663409. The next prime is 222663457. The reversal of 222663450 is 54366222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (222663457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72445 + ... + 75455.

It is an arithmetic number, because the mean of its divisors is an integer number (6302610).

Almost surely, 2^222663450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222663450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302525280).

222663450 is an abundant number, since it is smaller than the sum of its proper divisors (382387110).

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

222663450 is a wasteful number, since it uses less digits than its factorization.

222663450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 222663450 is about 14921.9117407925. The cubic root of 222663450 is about 606.1074812898.

The spelling of 222663450 in words is "two hundred twenty-two million, six hundred sixty-three thousand, four hundred fifty".