243529968 has 80 divisors (see below), whose sum is σ = 694705536. Its totient is φ = 72894720.

The previous prime is 243529939. The next prime is 243529997. The reversal of 243529968 is 869925342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243529939) and next prime (243529997).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41046 + ... + 46602.

Almost surely, 2^243529968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243529968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347352768).

243529968 is an abundant number, since it is smaller than the sum of its proper divisors (451175568).

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

243529968 is a wasteful number, since it uses less digits than its factorization.

243529968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662 (or 5656 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 243529968 is about 15605.4467414426. The cubic root of 243529968 is about 624.4784709596.

The spelling of 243529968 in words is "two hundred forty-three million, five hundred twenty-nine thousand, nine hundred sixty-eight".