3440234021 has 16 divisors (see below), whose sum is σ = 4064575488. Its totient is φ = 2849396400.

The previous prime is 3440234003. The next prime is 3440234029. The reversal of 3440234021 is 1204320443.

3440234021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3440234021 - 2³⁰ = 2366492197 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 (3440234029) 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, 138476 + ... + 161418.

It is an arithmetic number, because the mean of its divisors is an integer number (254035968).

Almost surely, 2^3440234021 is an apocalyptic number.

3440234021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3440234021 is a deficient number, since it is larger than the sum of its proper divisors (624341467).

3440234021 is a wasteful number, since it uses less digits than its factorization.

3440234021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23672.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3440234021 is about 58653.5081729985. The cubic root of 3440234021 is about 1509.6026937403.

Adding to 3440234021 its reverse (1204320443), we get a palindrome (4644554464).

The spelling of 3440234021 in words is "three billion, four hundred forty million, two hundred thirty-four thousand, twenty-one".