343311140 has 48 divisors (see below), whose sum is σ = 740057472. Its totient is φ = 133706496.

The previous prime is 343311127. The next prime is 343311151. The reversal of 343311140 is 41113343.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530297 + ... + 530943.

It is an arithmetic number, because the mean of its divisors is an integer number (15417864).

Almost surely, 2^343311140 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 343311140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370028736).

343311140 is an abundant number, since it is smaller than the sum of its proper divisors (396746332).

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

343311140 is a wasteful number, since it uses less digits than its factorization.

343311140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 343311140 is about 18528.6572638170. The cubic root of 343311140 is about 700.2115958963.

Adding to 343311140 its reverse (41113343), we get a palindrome (384424483).

The spelling of 343311140 in words is "three hundred forty-three million, three hundred eleven thousand, one hundred forty".