243531060 has 24 divisors (see below), whose sum is σ = 681887136. Its totient is φ = 64941600.

The previous prime is 243531053. The next prime is 243531073. The reversal of 243531060 is 60135342.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 243531060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029366 + ... + 2029485.

It is an arithmetic number, because the mean of its divisors is an integer number (28411964).

Almost surely, 2^243531060 is an apocalyptic number.

243531060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243531060 is an abundant number, since it is smaller than the sum of its proper divisors (438356076).

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

243531060 is a wasteful number, since it uses less digits than its factorization.

243531060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058863 (or 4058861 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 243531060 is about 15605.4817291873. The cubic root of 243531060 is about 624.4794043553.

The spelling of 243531060 in words is "two hundred forty-three million, five hundred thirty-one thousand, sixty".