34030021 has 8 divisors (see below), whose sum is σ = 35953920. Its totient is φ = 32156208.

The previous prime is 34029997. The next prime is 34030043. The reversal of 34030021 is 12003043.

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 34030021 - 2¹³ = 34021829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34029983 and 34030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34030421) 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, 11121 + ... + 13846.

It is an arithmetic number, because the mean of its divisors is an integer number (4494240).

Almost surely, 2^34030021 is an apocalyptic number.

It is an amenable number.

34030021 is a deficient number, since it is larger than the sum of its proper divisors (1923899).

34030021 is a wasteful number, since it uses less digits than its factorization.

34030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25043.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 34030021 is about 5833.5256063550. The cubic root of 34030021 is about 324.0565014759.

Adding to 34030021 its reverse (12003043), we get a palindrome (46033064).

The spelling of 34030021 in words is "thirty-four million, thirty thousand, twenty-one".