2443240331 has 4 divisors (see below), whose sum is σ = 2792274672. Its totient is φ = 2094205992.

The previous prime is 2443240321. The next prime is 2443240333. The reversal of 2443240331 is 1330423442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2443240331 - 2¹⁰ = 2443239307 is a prime.

It is a super-2 number, since 2×2443240331² = 11938846630049979122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2443240331.

It is not an unprimeable number, because it can be changed into a prime (2443240333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174517160 + ... + 174517173.

It is an arithmetic number, because the mean of its divisors is an integer number (698068668).

Almost surely, 2^2443240331 is an apocalyptic number.

2443240331 is a deficient number, since it is larger than the sum of its proper divisors (349034341).

2443240331 is an equidigital number, since it uses as much as digits as its factorization.

2443240331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349034340.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 2443240331 is about 49429.1445505584. The cubic root of 2443240331 is about 1346.8587836622.

Adding to 2443240331 its reverse (1330423442), we get a palindrome (3773663773).

The spelling of 2443240331 in words is "two billion, four hundred forty-three million, two hundred forty thousand, three hundred thirty-one".