222641424 has 30 divisors (see below), whose sum is σ = 623087166. Its totient is φ = 74213760.

The previous prime is 222641423. The next prime is 222641437. The reversal of 222641424 is 424146222.

222641424 is a `hidden beast` number, since 2 + 226 + 414 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 144000000 + 78641424 = 12000^2 + 8868^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222641423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772917 + ... + 773204.

Almost surely, 2^222641424 is an apocalyptic number.

222641424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222641424 is an abundant number, since it is smaller than the sum of its proper divisors (400445742).

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

222641424 is a wasteful number, since it uses less digits than its factorization.

222641424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546135 (or 1546126 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 222641424 is about 14921.1736803778. The cubic root of 222641424 is about 606.0874951274.

Adding to 222641424 its reverse (424146222), we get a palindrome (646787646).

The spelling of 222641424 in words is "two hundred twenty-two million, six hundred forty-one thousand, four hundred twenty-four".