243141040 has 20 divisors (see below), whose sum is σ = 565303104. Its totient is φ = 97256384.

The previous prime is 243141001. The next prime is 243141047. The reversal of 243141040 is 40141342.

243141040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 243140999 and 243141017.

It is not an unprimeable number, because it can be changed into a prime (243141047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519552 + ... + 1519711.

Almost surely, 2^243141040 is an apocalyptic number.

243141040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243141040 is an abundant number, since it is smaller than the sum of its proper divisors (322162064).

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

243141040 is a wasteful number, since it uses less digits than its factorization.

243141040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039276 (or 3039270 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 243141040 is about 15592.9804719944. The cubic root of 243141040 is about 624.1458540272.

Adding to 243141040 its reverse (40141342), we get a palindrome (283282382).

The spelling of 243141040 in words is "two hundred forty-three million, one hundred forty-one thousand, forty".