34220424 has 64 divisors (see below), whose sum is σ = 99792000. Its totient is φ = 9774912.

The previous prime is 34220401. The next prime is 34220443. The reversal of 34220424 is 42402243.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 34220424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6154 + ... + 10310.

It is an arithmetic number, because the mean of its divisors is an integer number (1559250).

Almost surely, 2^34220424 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 34220424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49896000).

34220424 is an abundant number, since it is smaller than the sum of its proper divisors (65571576).

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

34220424 is a wasteful number, since it uses less digits than its factorization.

34220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187 (or 4169 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 34220424 is about 5849.8225614116. The cubic root of 34220424 is about 324.6597591152.

Adding to 34220424 its reverse (42402243), we get a palindrome (76622667).

The spelling of 34220424 in words is "thirty-four million, two hundred twenty thousand, four hundred twenty-four".