344028020 has 72 divisors (see below), whose sum is σ = 877008384. Its totient is φ = 112816704.

The previous prime is 344028017. The next prime is 344028029. The reversal of 344028020 is 20820443.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344028029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14909 + ... + 30171.

It is an arithmetic number, because the mean of its divisors is an integer number (12180672).

Almost surely, 2^344028020 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 344028020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438504192).

344028020 is an abundant number, since it is smaller than the sum of its proper divisors (532980364).

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

344028020 is a wasteful number, since it uses less digits than its factorization.

344028020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15309 (or 15300 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 344028020 is about 18547.9923441865. The cubic root of 344028020 is about 700.6986358270.

Adding to 344028020 its reverse (20820443), we get a palindrome (364848463).

The spelling of 344028020 in words is "three hundred forty-four million, twenty-eight thousand, twenty".