34043355421 has 4 divisors (see below), whose sum is σ = 34043727744. Its totient is φ = 34042983100.

The previous prime is 34043355407. The next prime is 34043355439. The reversal of 34043355421 is 12455334043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 34043355421 - 2¹⁵ = 34043322653 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 (34043355821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55956 + ... + 266866.

It is an arithmetic number, because the mean of its divisors is an integer number (8510931936).

Almost surely, 2^34043355421 is an apocalyptic number.

It is an amenable number.

34043355421 is a deficient number, since it is larger than the sum of its proper divisors (372323).

34043355421 is a wasteful number, since it uses less digits than its factorization.

34043355421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372322.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 34043355421 its reverse (12455334043), we get a palindrome (46498689464).

The spelling of 34043355421 in words is "thirty-four billion, forty-three million, three hundred fifty-five thousand, four hundred twenty-one".