243125040 has 80 divisors (see below), whose sum is σ = 764067168. Its totient is φ = 63940608.

The previous prime is 243125027. The next prime is 243125059. The reversal of 243125040 is 40521342.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 243124998 and 243125016.

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, 10582 + ... + 24458.

Almost surely, 2^243125040 is an apocalyptic number.

243125040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243125040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382033584).

243125040 is an abundant number, since it is smaller than the sum of its proper divisors (520942128).

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

243125040 is a wasteful number, since it uses less digits than its factorization.

243125040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966 (or 13960 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 243125040 is about 15592.4674121834. The cubic root of 243125040 is about 624.1321629987.

Adding to 243125040 its reverse (40521342), we get a palindrome (283646382).

The spelling of 243125040 in words is "two hundred forty-three million, one hundred twenty-five thousand, forty".