343105400 has 96 divisors (see below), whose sum is σ = 881193600. Its totient is φ = 123196800.

The previous prime is 343105387. The next prime is 343105417. The reversal of 343105400 is 4501343.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181661 + ... + 183539.

It is an arithmetic number, because the mean of its divisors is an integer number (9179100).

Almost surely, 2^343105400 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 343105400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440596800).

343105400 is an abundant number, since it is smaller than the sum of its proper divisors (538088200).

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

343105400 is a wasteful number, since it uses less digits than its factorization.

343105400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 343105400 is about 18523.1044914183. The cubic root of 343105400 is about 700.0716933373.

Adding to 343105400 its reverse (4501343), we get a palindrome (347606743).

The spelling of 343105400 in words is "three hundred forty-three million, one hundred five thousand, four hundred".