34202220 has 72 divisors (see below), whose sum is σ = 103730256. Its totient is φ = 8416512.

The previous prime is 34202213. The next prime is 34202257. The reversal of 34202220 is 2220243.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 34202220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8454 + ... + 11826.

It is an arithmetic number, because the mean of its divisors is an integer number (1440698).

Almost surely, 2^34202220 is an apocalyptic number.

34202220 is a gapful number since it is divisible by the number (30) 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 34202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51865128).

34202220 is an abundant number, since it is smaller than the sum of its proper divisors (69528036).

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

34202220 is a wasteful number, since it uses less digits than its factorization.

34202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411 (or 3396 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 34202220 is about 5848.2664098004. The cubic root of 34202220 is about 324.6021799090.

Adding to 34202220 its reverse (2220243), we get a palindrome (36422463).

The spelling of 34202220 in words is "thirty-four million, two hundred two thousand, two hundred twenty".