243952500 has 120 divisors (see below), whose sum is σ = 776226528. Its totient is φ = 59120000.

The previous prime is 243952469. The next prime is 243952529. The reversal of 243952500 is 5259342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81022 + ... + 83978.

Almost surely, 2^243952500 is an apocalyptic number.

243952500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243952500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388113264).

243952500 is an abundant number, since it is smaller than the sum of its proper divisors (532274028).

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

243952500 is a wasteful number, since it uses less digits than its factorization.

243952500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 243952500 is about 15618.9788398602. The cubic root of 243952500 is about 624.8394254155.

The spelling of 243952500 in words is "two hundred forty-three million, nine hundred fifty-two thousand, five hundred".