34840221 has 8 divisors (see below), whose sum is σ = 50027040. Its totient is φ = 21440112.

The previous prime is 34840219. The next prime is 34840231. The reversal of 34840221 is 12204843.

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

It is not a de Polignac number, because 34840221 - 2¹ = 34840219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34840191 and 34840200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34840231) 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, 446631 + ... + 446708.

It is an arithmetic number, because the mean of its divisors is an integer number (6253380).

Almost surely, 2^34840221 is an apocalyptic number.

It is an amenable number.

34840221 is a deficient number, since it is larger than the sum of its proper divisors (15186819).

34840221 is a wasteful number, since it uses less digits than its factorization.

34840221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893355.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 34840221 is about 5902.5605460681. The cubic root of 34840221 is about 326.6081119306.

The spelling of 34840221 in words is "thirty-four million, eight hundred forty thousand, two hundred twenty-one".