3440302221 has 16 divisors (see below), whose sum is σ = 4765219328. Its totient is φ = 2205403200.

The previous prime is 3440302183. The next prime is 3440302237. The reversal of 3440302221 is 1222030443.

3440302221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3440302221 - 2⁷ = 3440302093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440304221) 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, 103210 + ... + 132411.

It is an arithmetic number, because the mean of its divisors is an integer number (297826208).

Almost surely, 2^3440302221 is an apocalyptic number.

3440302221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3440302221 is a deficient number, since it is larger than the sum of its proper divisors (1324917107).

3440302221 is a wasteful number, since it uses less digits than its factorization.

3440302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235812.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3440302221 is about 58654.0895505164. The cubic root of 3440302221 is about 1509.6126692461.

Adding to 3440302221 its reverse (1222030443), we get a palindrome (4662332664).

The spelling of 3440302221 in words is "three billion, four hundred forty million, three hundred two thousand, two hundred twenty-one".