1240441423 has 8 divisors (see below), whose sum is σ = 1336241088. Its totient is φ = 1144696224.

The previous prime is 1240441403. The next prime is 1240441441. The reversal of 1240441423 is 3241440421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240441423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240441403) 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, 42186 + ... + 65272.

It is an arithmetic number, because the mean of its divisors is an integer number (167030136).

Almost surely, 2^1240441423 is an apocalyptic number.

1240441423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1240441423 is a deficient number, since it is larger than the sum of its proper divisors (95799665).

1240441423 is a wasteful number, since it uses less digits than its factorization.

1240441423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27233.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1240441423 is about 35219.9009510248. The cubic root of 1240441423 is about 1074.4645389540.

Adding to 1240441423 its reverse (3241440421), we get a palindrome (4481881844).

The spelling of 1240441423 in words is "one billion, two hundred forty million, four hundred forty-one thousand, four hundred twenty-three".