4340042121 has 8 divisors (see below), whose sum is σ = 5811993280. Its totient is φ = 2880726192.

The previous prime is 4340042117. The next prime is 4340042137. The reversal of 4340042121 is 1212400434.

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

It is not a de Polignac number, because 4340042121 - 2² = 4340042117 is a prime.

It is a super-2 number, since 2×4340042121² = 37671931224108357282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4340042141) 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, 3158005 + ... + 3159378.

It is an arithmetic number, because the mean of its divisors is an integer number (726499160).

Almost surely, 2^4340042121 is an apocalyptic number.

It is an amenable number.

4340042121 is a deficient number, since it is larger than the sum of its proper divisors (1471951159).

4340042121 is a wasteful number, since it uses less digits than its factorization.

4340042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317615.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4340042121 is about 65878.9960533705. The cubic root of 4340042121 is about 1631.1653278697.

Adding to 4340042121 its reverse (1212400434), we get a palindrome (5552442555).

The spelling of 4340042121 in words is "four billion, three hundred forty million, forty-two thousand, one hundred twenty-one".