34144220 has 24 divisors (see below), whose sum is σ = 78221808. Its totient is φ = 12416000.

The previous prime is 34144207. The next prime is 34144301. The reversal of 34144220 is 2244143.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 34144192 and 34144201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77381 + ... + 77820.

It is an arithmetic number, because the mean of its divisors is an integer number (3259242).

Almost surely, 2^34144220 is an apocalyptic number.

It is an amenable number.

34144220 is an abundant number, since it is smaller than the sum of its proper divisors (44077588).

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

34144220 is a wasteful number, since it uses less digits than its factorization.

34144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155221 (or 155219 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 34144220 is about 5843.3055713355. The cubic root of 34144220 is about 324.4185896948.

Adding to 34144220 its reverse (2244143), we get a palindrome (36388363).

The spelling of 34144220 in words is "thirty-four million, one hundred forty-four thousand, two hundred twenty".