343240140 has 48 divisors (see below), whose sum is σ = 961884000. Its totient is φ = 91453440.

The previous prime is 343240133. The next prime is 343240141. The reversal of 343240140 is 41042343.

It is not an unprimeable number, because it can be changed into a prime (343240141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123486 + ... + 126234.

It is an arithmetic number, because the mean of its divisors is an integer number (20039250).

Almost surely, 2^343240140 is an apocalyptic number.

343240140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343240140 is an abundant number, since it is smaller than the sum of its proper divisors (618643860).

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

343240140 is a wasteful number, since it uses less digits than its factorization.

343240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842 (or 4840 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 343240140 is about 18526.7412137159. The cubic root of 343240140 is about 700.1633224352.

Adding to 343240140 its reverse (41042343), we get a palindrome (384282483).

The spelling of 343240140 in words is "three hundred forty-three million, two hundred forty thousand, one hundred forty".