240440443 has 4 divisors (see below), whose sum is σ = 241499880. Its totient is φ = 239381008.

The previous prime is 240440429. The next prime is 240440461. The reversal of 240440443 is 344044042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240440443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240440243) 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, 529378 + ... + 529831.

It is an arithmetic number, because the mean of its divisors is an integer number (60374970).

Almost surely, 2^240440443 is an apocalyptic number.

240440443 is a deficient number, since it is larger than the sum of its proper divisors (1059437).

240440443 is a wasteful number, since it uses less digits than its factorization.

240440443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059436.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 240440443 is about 15506.1421056303. The cubic root of 240440443 is about 621.8264241007.

Adding to 240440443 its reverse (344044042), we get a palindrome (584484485).

The spelling of 240440443 in words is "two hundred forty million, four hundred forty thousand, four hundred forty-three".