343129240 has 16 divisors (see below), whose sum is σ = 772040880. Its totient is φ = 137251680.

The previous prime is 343129211. The next prime is 343129243. The reversal of 343129240 is 42921343.

It is a junction number, because it is equal to n+sod(n) for n = 343129199 and 343129208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343129243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4289076 + ... + 4289155.

It is an arithmetic number, because the mean of its divisors is an integer number (48252555).

Almost surely, 2^343129240 is an apocalyptic number.

It is an amenable number.

343129240 is an abundant number, since it is smaller than the sum of its proper divisors (428911640).

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

343129240 is a wasteful number, since it uses less digits than its factorization.

343129240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8578242 (or 8578238 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 343129240 is about 18523.7480008771. The cubic root of 343129240 is about 700.0879073273.

The spelling of 343129240 in words is "three hundred forty-three million, one hundred twenty-nine thousand, two hundred forty".