243613960 has 16 divisors (see below), whose sum is σ = 548131500. Its totient is φ = 97445568.

The previous prime is 243613939. The next prime is 243613967. The reversal of 243613960 is 69316342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 229280164 + 14333796 = 15142^2 + 3786^2 .

It is a super-4 number, since 4×243613960⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (243613967) 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, 3045135 + ... + 3045214.

Almost surely, 2^243613960 is an apocalyptic number.

243613960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243613960 is an abundant number, since it is smaller than the sum of its proper divisors (304517540).

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

243613960 is a wasteful number, since it uses less digits than its factorization.

243613960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090360 (or 6090356 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 243613960 is about 15608.1376211257. The cubic root of 243613960 is about 624.5502556457.

The spelling of 243613960 in words is "two hundred forty-three million, six hundred thirteen thousand, nine hundred sixty".