243210030240 has 96 divisors (see below), whose sum is σ = 766236494016. Its totient is φ = 64845434880.

The previous prime is 243210030211. The next prime is 243210030247. The reversal of 243210030240 is 42030012342.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×243210030240² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243210030247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3165075 + ... + 3241005.

It is an arithmetic number, because the mean of its divisors is an integer number (7981630146).

Almost surely, 2^243210030240 is an apocalyptic number.

243210030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243210030240 is an abundant number, since it is smaller than the sum of its proper divisors (523026463776).

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

243210030240 is a wasteful number, since it uses less digits than its factorization.

243210030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82622 (or 82614 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 243210030240 its reverse (42030012342), we get a palindrome (285240042582).

The spelling of 243210030240 in words is "two hundred forty-three billion, two hundred ten million, thirty thousand, two hundred forty".