243817252 has 24 divisors (see below), whose sum is σ = 489957440. Its totient is φ = 103995360.

The previous prime is 243817243. The next prime is 243817261. The reversal of 243817252 is 252718342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243817243) and next prime (243817261).

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, 14727 + ... + 26542.

Almost surely, 2^243817252 is an apocalyptic number.

It is an amenable number.

243817252 is an abundant number, since it is smaller than the sum of its proper divisors (246140188).

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

243817252 is a wasteful number, since it uses less digits than its factorization.

243817252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41491 (or 41489 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 243817252 is about 15614.6486351759. The cubic root of 243817252 is about 624.7239331173.

The spelling of 243817252 in words is "two hundred forty-three million, eight hundred seventeen thousand, two hundred fifty-two".