34042344021 has 24 divisors (see below), whose sum is σ = 56284622784. Its totient is φ = 19422397440.

The previous prime is 34042344001. The next prime is 34042344041. The reversal of 34042344021 is 12044324043.

It is a happy number.

34042344021 is a `hidden beast` number, since 3 + 404 + 234 + 4 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (34042344001) and next prime (34042344041).

It is not a de Polignac number, because 34042344021 - 2⁷ = 34042343893 is a prime.

It is a super-2 number, since 2×34042344021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34042344001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381111 + ... + 461876.

It is an arithmetic number, because the mean of its divisors is an integer number (2345192616).

Almost surely, 2^34042344021 is an apocalyptic number.

It is an amenable number.

34042344021 is a deficient number, since it is larger than the sum of its proper divisors (22242278763).

34042344021 is a wasteful number, since it uses less digits than its factorization.

34042344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843641 (or 843638 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 34042344021 its reverse (12044324043), we get a palindrome (46086668064).

The spelling of 34042344021 in words is "thirty-four billion, forty-two million, three hundred forty-four thousand, twenty-one".