343131140 has 48 divisors (see below), whose sum is σ = 792336384. Its totient is φ = 123782400.

The previous prime is 343131133. The next prime is 343131209. The reversal of 343131140 is 41131343.

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

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 15 ways as a sum of consecutive naturals, for example, 21800 + ... + 34080.

It is an arithmetic number, because the mean of its divisors is an integer number (16507008).

Almost surely, 2^343131140 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 343131140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396168192).

343131140 is an abundant number, since it is smaller than the sum of its proper divisors (449205244).

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

343131140 is a wasteful number, since it uses less digits than its factorization.

343131140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12428 (or 12426 counting only the distinct ones).

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

The square root of 343131140 is about 18523.7992863235. The cubic root of 343131140 is about 700.0891995174.

Adding to 343131140 its reverse (41131343), we get a palindrome (384262483).

It can be divided in two parts, 34313 and 1140, that added together give a palindrome (35453).

The spelling of 343131140 in words is "three hundred forty-three million, one hundred thirty-one thousand, one hundred forty".