343020140 has 24 divisors (see below), whose sum is σ = 721311360. Its totient is φ = 137023488.

The previous prime is 343020131. The next prime is 343020157. The reversal of 343020140 is 41020343.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4229 + ... + 26531.

It is an arithmetic number, because the mean of its divisors is an integer number (30054640).

Almost surely, 2^343020140 is an apocalyptic number.

It is an amenable number.

343020140 is an abundant number, since it is smaller than the sum of its proper divisors (378291220).

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

343020140 is a wasteful number, since it uses less digits than its factorization.

343020140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23081 (or 23079 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 343020140 is about 18520.8028983627. The cubic root of 343020140 is about 700.0137004121.

Adding to 343020140 its reverse (41020343), we get a palindrome (384040483).

The spelling of 343020140 in words is "three hundred forty-three million, twenty thousand, one hundred forty".