243301401 has 40 divisors (see below), whose sum is σ = 416751104. Its totient is φ = 138568320.

The previous prime is 243301391. The next prime is 243301459. The reversal of 243301401 is 104103342.

It is not a de Polignac number, because 243301401 - 2⁵ = 243301369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243301601) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 245016 + ... + 246006.

Almost surely, 2^243301401 is an apocalyptic number.

243301401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243301401 is a deficient number, since it is larger than the sum of its proper divisors (173449703).

243301401 is an equidigital number, since it uses as much as digits as its factorization.

243301401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1434 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 243301401 is about 15598.1217138475. The cubic root of 243301401 is about 624.2830400506.

Adding to 243301401 its reverse (104103342), we get a palindrome (347404743).

The spelling of 243301401 in words is "two hundred forty-three million, three hundred one thousand, four hundred one".