243130030240 has 48 divisors (see below), whose sum is σ = 599368387968. Its totient is φ = 93023662336.

The previous prime is 243130030219. The next prime is 243130030267. The reversal of 243130030240 is 42030031342.

It is a happy number.

243130030240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243130030240² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33030292 + ... + 33037651.

It is an arithmetic number, because the mean of its divisors is an integer number (12486841416).

Almost surely, 2^243130030240 is an apocalyptic number.

243130030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243130030240 is an abundant number, since it is smaller than the sum of its proper divisors (356238357728).

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

243130030240 is a wasteful number, since it uses less digits than its factorization.

243130030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66067981 (or 66067973 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 243130030240 its reverse (42030031342), we get a palindrome (285160061582).

The spelling of 243130030240 in words is "two hundred forty-three billion, one hundred thirty million, thirty thousand, two hundred forty".