34243021 has 8 divisors (see below), whose sum is σ = 36319104. Its totient is φ = 32215920.

The previous prime is 34243009. The next prime is 34243051. The reversal of 34243021 is 12034243.

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 34243021 - 2¹⁷ = 34111949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34243021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34243051) 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, 10801 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (4539888).

Almost surely, 2^34243021 is an apocalyptic number.

It is an amenable number.

34243021 is a deficient number, since it is larger than the sum of its proper divisors (2076083).

34243021 is a wasteful number, since it uses less digits than its factorization.

34243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24491.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 34243021 is about 5851.7536687731. The cubic root of 34243021 is about 324.7312049702.

Adding to 34243021 its reverse (12034243), we get a palindrome (46277264).

The spelling of 34243021 in words is "thirty-four million, two hundred forty-three thousand, twenty-one".