243957852 has 48 divisors (see below), whose sum is σ = 633376800. Its totient is φ = 81204480.

The previous prime is 243957841. The next prime is 243957893. The reversal of 243957852 is 258759342.

243957852 is a `hidden beast` number, since 24 + 3 + 9 + 578 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 243957798 and 243957807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113524 + ... + 115652.

It is an arithmetic number, because the mean of its divisors is an integer number (13195350).

Almost surely, 2^243957852 is an apocalyptic number.

It is an amenable number.

243957852 is an abundant number, since it is smaller than the sum of its proper divisors (389418948).

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

243957852 is a wasteful number, since it uses less digits than its factorization.

243957852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203 (or 3195 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 243957852 is about 15619.1501689433. The cubic root of 243957852 is about 624.8439947697.

The spelling of 243957852 in words is "two hundred forty-three million, nine hundred fifty-seven thousand, eight hundred fifty-two".