243820801 has 8 divisors (see below), whose sum is σ = 278982144. Its totient is φ = 208741920.

The previous prime is 243820799. The next prime is 243820807. The reversal of 243820801 is 108028342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243820801 - 2¹ = 243820799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243820801.

It is not an unprimeable number, because it can be changed into a prime (243820807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14140 + ... + 26221.

It is an arithmetic number, because the mean of its divisors is an integer number (34872768).

Almost surely, 2^243820801 is an apocalyptic number.

It is an amenable number.

243820801 is a deficient number, since it is larger than the sum of its proper divisors (35161343).

243820801 is an equidigital number, since it uses as much as digits as its factorization.

243820801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41231.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 243820801 is about 15614.7622780496. The cubic root of 243820801 is about 624.7269642597.

The spelling of 243820801 in words is "two hundred forty-three million, eight hundred twenty thousand, eight hundred one".