343255440 has 80 divisors (see below), whose sum is σ = 1160836416. Its totient is φ = 83212800.

The previous prime is 343255391. The next prime is 343255453. The reversal of 343255440 is 44552343.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 343255398 and 343255407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62371 + ... + 67650.

Almost surely, 2^343255440 is an apocalyptic number.

343255440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

343255440 is an abundant number, since it is smaller than the sum of its proper divisors (817580976).

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

343255440 is a wasteful number, since it uses less digits than its factorization.

343255440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130048 (or 130042 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 343255440 is about 18527.1541257690. The cubic root of 343255440 is about 700.1737255888.

The spelling of 343255440 in words is "three hundred forty-three million, two hundred fifty-five thousand, four hundred forty".