243325413240 has 768 divisors, whose sum is σ = 945817689600. Its totient is φ = 49600180224.

The previous prime is 243325413211. The next prime is 243325413283. The reversal of 243325413240 is 42314523342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 642019371 + ... + 642019749.

It is an arithmetic number, because the mean of its divisors is an integer number (1231533450).

Almost surely, 2^243325413240 is an apocalyptic number.

243325413240 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 243325413240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472908844800).

243325413240 is an abundant number, since it is smaller than the sum of its proper divisors (702492276360).

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

243325413240 is a wasteful number, since it uses less digits than its factorization.

243325413240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 243325413240 its reverse (42314523342), we get a palindrome (285639936582).

The spelling of 243325413240 in words is "two hundred forty-three billion, three hundred twenty-five million, four hundred thirteen thousand, two hundred forty".