243935000220 has 48 divisors (see below), whose sum is σ = 723195533088. Its totient is φ = 61222901760.

The previous prime is 243935000207. The next prime is 243935000261. The reversal of 243935000220 is 22000539342.

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

It is a congruent number.

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, 119574961 + ... + 119577000.

It is an arithmetic number, because the mean of its divisors is an integer number (15066573606).

Almost surely, 2^243935000220 is an apocalyptic number.

243935000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243935000220 is an abundant number, since it is smaller than the sum of its proper divisors (479260532868).

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

243935000220 is a wasteful number, since it uses less digits than its factorization.

243935000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239151990 (or 239151988 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 243935000220 its reverse (22000539342), we get a palindrome (265935539562).

The spelling of 243935000220 in words is "two hundred forty-three billion, nine hundred thirty-five million, two hundred twenty", and thus it is an aban number.