34440203221 has 4 divisors (see below), whose sum is σ = 34443272844. Its totient is φ = 34437133600.

The previous prime is 34440203201. The next prime is 34440203233. The reversal of 34440203221 is 12230204443.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24765316900 + 9674886321 = 157370^2 + 98361^2 .

It is a cyclic number.

It is not a de Polignac number, because 34440203221 - 2³¹ = 32292719573 is a prime.

It is a super-2 number, since 2×34440203221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34440203201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517920 + ... + 1540441.

It is an arithmetic number, because the mean of its divisors is an integer number (8610818211).

Almost surely, 2^34440203221 is an apocalyptic number.

It is an amenable number.

34440203221 is a deficient number, since it is larger than the sum of its proper divisors (3069623).

34440203221 is a wasteful number, since it uses less digits than its factorization.

34440203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069622.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 34440203221 its reverse (12230204443), we get a palindrome (46670407664).

The spelling of 34440203221 in words is "thirty-four billion, four hundred forty million, two hundred three thousand, two hundred twenty-one".