4340434021 has 8 divisors (see below), whose sum is σ = 5411450304. Its totient is φ = 3382156320.

The previous prime is 4340434013. The next prime is 4340434027. The reversal of 4340434021 is 1204340434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4340434021 - 2³ = 4340434013 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 (4340434027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28184560 + ... + 28184713.

It is an arithmetic number, because the mean of its divisors is an integer number (676431288).

Almost surely, 2^4340434021 is an apocalyptic number.

It is an amenable number.

4340434021 is a deficient number, since it is larger than the sum of its proper divisors (1071016283).

4340434021 is a wasteful number, since it uses less digits than its factorization.

4340434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56369291.

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

The square root of 4340434021 is about 65881.9703788525. The cubic root of 4340434021 is about 1631.2144237413.

Adding to 4340434021 its reverse (1204340434), we get a palindrome (5544774455).

The spelling of 4340434021 in words is "four billion, three hundred forty million, four hundred thirty-four thousand, twenty-one".