243513632 has 24 divisors (see below), whose sum is σ = 479776752. Its totient is φ = 121665600.

The previous prime is 243513607. The next prime is 243513653. The reversal of 243513632 is 236315342.

It is a junction number, because it is equal to n+sod(n) for n = 243513595 and 243513604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66407 + ... + 69977.

It is an arithmetic number, because the mean of its divisors is an integer number (19990698).

Almost surely, 2^243513632 is an apocalyptic number.

It is an amenable number.

243513632 is a deficient number, since it is larger than the sum of its proper divisors (236263120).

243513632 is a wasteful number, since it uses less digits than its factorization.

243513632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5704 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 243513632 is about 15604.9233256687. The cubic root of 243513632 is about 624.4645073005.

Adding to 243513632 its reverse (236315342), we get a palindrome (479828974).

The spelling of 243513632 in words is "two hundred forty-three million, five hundred thirteen thousand, six hundred thirty-two".