243132454040 has 32 divisors (see below), whose sum is σ = 625197739680. Its totient is φ = 83359698432.

The previous prime is 243132454021. The next prime is 243132454063. The reversal of 243132454040 is 40454231342.

243132454040 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×243132454040³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 243132453988 and 243132454006.

It is a congruent number.

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, 434164817 + ... + 434165376.

It is an arithmetic number, because the mean of its divisors is an integer number (19537429365).

Almost surely, 2^243132454040 is an apocalyptic number.

243132454040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243132454040 is an abundant number, since it is smaller than the sum of its proper divisors (382065285640).

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

243132454040 is a wasteful number, since it uses less digits than its factorization.

243132454040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868330211 (or 868330207 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 243132454040 its reverse (40454231342), we get a palindrome (283586685382).

The spelling of 243132454040 in words is "two hundred forty-three billion, one hundred thirty-two million, four hundred fifty-four thousand, forty".