243241401 has 32 divisors (see below), whose sum is σ = 371338240. Its totient is φ = 140387904.

The previous prime is 243241379. The next prime is 243241409. The reversal of 243241401 is 104142342.

It is not a de Polignac number, because 243241401 - 2⁶ = 243241337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243241409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74730 + ... + 77916.

It is an arithmetic number, because the mean of its divisors is an integer number (11604320).

Almost surely, 2^243241401 is an apocalyptic number.

It is an amenable number.

243241401 is a deficient number, since it is larger than the sum of its proper divisors (128096839).

243241401 is a wasteful number, since it uses less digits than its factorization.

243241401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 243241401 is about 15596.1982867621. The cubic root of 243241401 is about 624.2317181625.

Adding to 243241401 its reverse (104142342), we get a palindrome (347383743).

The spelling of 243241401 in words is "two hundred forty-three million, two hundred forty-one thousand, four hundred one".