34245220 has 48 divisors (see below), whose sum is σ = 76224960. Its totient is φ = 12887424.

The previous prime is 34245199. The next prime is 34245221. The reversal of 34245220 is 2254243.

It is a junction number, because it is equal to n+sod(n) for n = 34245191 and 34245200.

It is not an unprimeable number, because it can be changed into a prime (34245221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86062 + ... + 86458.

It is an arithmetic number, because the mean of its divisors is an integer number (1588020).

Almost surely, 2^34245220 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 34245220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38112480).

34245220 is an abundant number, since it is smaller than the sum of its proper divisors (41979740).

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

34245220 is a wasteful number, since it uses less digits than its factorization.

34245220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 34245220 is about 5851.9415581497. The cubic root of 34245220 is about 324.7381559596.

Adding to 34245220 its reverse (2254243), we get a palindrome (36499463).

The spelling of 34245220 in words is "thirty-four million, two hundred forty-five thousand, two hundred twenty".