3440245221 has 24 divisors (see below), whose sum is σ = 5690568000. Its totient is φ = 1961896896.

The previous prime is 3440245199. The next prime is 3440245253. The reversal of 3440245221 is 1225420443.

3440245221 is a `hidden beast` number, since 34 + 402 + 4 + 5 + 221 = 666.

It is not a de Polignac number, because 3440245221 - 2⁵ = 3440245189 is a prime.

It is a super-2 number, since 2×3440245221² = 23670574361226677682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440245421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23280 + ... + 86153.

It is an arithmetic number, because the mean of its divisors is an integer number (237107000).

Almost surely, 2^3440245221 is an apocalyptic number.

It is an amenable number.

3440245221 is a deficient number, since it is larger than the sum of its proper divisors (2250322779).

3440245221 is a wasteful number, since it uses less digits than its factorization.

3440245221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109945 (or 109942 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 3440245221 is about 58653.6036488808. The cubic root of 3440245221 is about 1509.6043319556.

Adding to 3440245221 its reverse (1225420443), we get a palindrome (4665665664).

The spelling of 3440245221 in words is "three billion, four hundred forty million, two hundred forty-five thousand, two hundred twenty-one".