2440241221 has 16 divisors (see below), whose sum is σ = 2761205760. Its totient is φ = 2136205120.

The previous prime is 2440241207. The next prime is 2440241227. The reversal of 2440241221 is 1221420442.

It is a cyclic number.

It is not a de Polignac number, because 2440241221 - 2⁹ = 2440240709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2440241192 and 2440241201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440241227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112191 + ... + 132163.

It is an arithmetic number, because the mean of its divisors is an integer number (172575360).

Almost surely, 2^2440241221 is an apocalyptic number.

It is an amenable number.

2440241221 is a deficient number, since it is larger than the sum of its proper divisors (320964539).

2440241221 is a wasteful number, since it uses less digits than its factorization.

2440241221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20396.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2440241221 is about 49398.7977687717. The cubic root of 2440241221 is about 1346.3074623260.

Adding to 2440241221 its reverse (1221420442), we get a palindrome (3661661663).

The spelling of 2440241221 in words is "two billion, four hundred forty million, two hundred forty-one thousand, two hundred twenty-one".