343403120 has 40 divisors (see below), whose sum is σ = 824173440. Its totient is φ = 132929280.

The previous prime is 343403119. The next prime is 343403141. The reversal of 343403120 is 21304343.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a junction number, because it is equal to n+sod(n) for n = 343403092 and 343403101.

It is a congruent number.

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, 66755 + ... + 71714.

It is an arithmetic number, because the mean of its divisors is an integer number (20604336).

Almost surely, 2^343403120 is an apocalyptic number.

It is an amenable number.

343403120 is an abundant number, since it is smaller than the sum of its proper divisors (480770320).

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

343403120 is a wasteful number, since it uses less digits than its factorization.

343403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138513 (or 138507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 343403120 is about 18531.1391986569. The cubic root of 343403120 is about 700.2741239300.

Adding to 343403120 its reverse (21304343), we get a palindrome (364707463).

The spelling of 343403120 in words is "three hundred forty-three million, four hundred three thousand, one hundred twenty".