243023022 has 48 divisors (see below), whose sum is σ = 577055232. Its totient is φ = 73305360.

The previous prime is 243023017. The next prime is 243023029. The reversal of 243023022 is 220320342.

243023022 is a `hidden beast` number, since 2 + 430 + 230 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 243022986 and 243023004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243023029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42243 + ... + 47649.

It is an arithmetic number, because the mean of its divisors is an integer number (12021984).

Almost surely, 2^243023022 is an apocalyptic number.

243023022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 243023022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288527616).

243023022 is an abundant number, since it is smaller than the sum of its proper divisors (334032210).

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

243023022 is a wasteful number, since it uses less digits than its factorization.

243023022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653 (or 5650 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 243023022 is about 15589.1956816251. The cubic root of 243023022 is about 624.0448531615.

Adding to 243023022 its reverse (220320342), we get a palindrome (463343364).

It can be divided in two parts, 2430 and 23022, that added together give a palindrome (25452).

The spelling of 243023022 in words is "two hundred forty-three million, twenty-three thousand, twenty-two".