34221204 has 144 divisors (see below), whose sum is σ = 100900800. Its totient is φ = 10077696.

The previous prime is 34221203. The next prime is 34221251. The reversal of 34221204 is 40212243.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34221203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313902 + ... + 314010.

It is an arithmetic number, because the mean of its divisors is an integer number (700700).

Almost surely, 2^34221204 is an apocalyptic number.

34221204 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34221204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50450400).

34221204 is an abundant number, since it is smaller than the sum of its proper divisors (66679596).

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

34221204 is a wasteful number, since it uses less digits than its factorization.

34221204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 34221204 is about 5849.8892297205. The cubic root of 34221204 is about 324.6622257970.

Adding to 34221204 its reverse (40212243), we get a palindrome (74433447).

The spelling of 34221204 in words is "thirty-four million, two hundred twenty-one thousand, two hundred four".