243022020 has 48 divisors (see below), whose sum is σ = 702417408. Its totient is φ = 62714880.

The previous prime is 243022019. The next prime is 243022049. The reversal of 243022020 is 20220342.

243022020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63469 + ... + 67188.

It is an arithmetic number, because the mean of its divisors is an integer number (14633696).

Almost surely, 2^243022020 is an apocalyptic number.

243022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243022020 is an abundant number, since it is smaller than the sum of its proper divisors (459395388).

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

243022020 is a wasteful number, since it uses less digits than its factorization.

243022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130700 (or 130698 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 243022020 is about 15589.1635439494. The cubic root of 243022020 is about 624.0439955009.

Adding to 243022020 its reverse (20220342), we get a palindrome (263242362).

The spelling of 243022020 in words is "two hundred forty-three million, twenty-two thousand, twenty".