1240411223 has 4 divisors (see below), whose sum is σ = 1241773728. Its totient is φ = 1239048720.

The previous prime is 1240411213. The next prime is 1240411243. The reversal of 1240411223 is 3221140421.

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-1240411223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240411195 and 1240411204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240411213) 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, 679886 + ... + 681707.

It is an arithmetic number, because the mean of its divisors is an integer number (310443432).

Almost surely, 2^1240411223 is an apocalyptic number.

1240411223 is a deficient number, since it is larger than the sum of its proper divisors (1362505).

1240411223 is an equidigital number, since it uses as much as digits as its factorization.

1240411223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362504.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1240411223 is about 35219.4722135355. The cubic root of 1240411223 is about 1074.4558191838.

Adding to 1240411223 its reverse (3221140421), we get a palindrome (4461551644).

The spelling of 1240411223 in words is "one billion, two hundred forty million, four hundred eleven thousand, two hundred twenty-three".