222144432 has 40 divisors (see below), whose sum is σ = 583288560. Its totient is φ = 72833280.

The previous prime is 222144431. The next prime is 222144443. The reversal of 222144432 is 234441222.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 (222144431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35007 + ... + 40862.

It is an arithmetic number, because the mean of its divisors is an integer number (14582214).

Almost surely, 2^222144432 is an apocalyptic number.

It is an amenable number.

222144432 is an abundant number, since it is smaller than the sum of its proper divisors (361144128).

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

222144432 is a wasteful number, since it uses less digits than its factorization.

222144432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75941 (or 75935 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 222144432 is about 14904.5104582472. The cubic root of 222144432 is about 605.6361789214.

Adding to 222144432 its reverse (234441222), we get a palindrome (456585654).

It can be divided in two parts, 22214443 and 2, that added together give a triangular number (22214445 = T₆₆₆₅).

The spelling of 222144432 in words is "two hundred twenty-two million, one hundred forty-four thousand, four hundred thirty-two".