34505216 has 40 divisors (see below), whose sum is σ = 72592080. Its totient is φ = 16339968.

The previous prime is 34505209. The next prime is 34505227. The reversal of 34505216 is 61250543.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7955 + ... + 11501.

It is an arithmetic number, because the mean of its divisors is an integer number (1814802).

Almost surely, 2^34505216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34505216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36296040).

34505216 is an abundant number, since it is smaller than the sum of its proper divisors (38086864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34505216 is an equidigital number, since it uses as much as digits as its factorization.

34505216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 34505216 is about 5874.1140608606. The cubic root of 34505216 is about 325.5579087832.

Adding to 34505216 its reverse (61250543), we get a palindrome (95755759).

The spelling of 34505216 in words is "thirty-four million, five hundred five thousand, two hundred sixteen".