343389375 has 240 divisors, whose sum is σ = 818737920. Its totient is φ = 139968000.

The previous prime is 343389359. The next prime is 343389401. The reversal of 343389375 is 573983343.

It is not a de Polignac number, because 343389375 - 2⁴ = 343389359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 343389375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 18073116 + ... + 18073134.

It is an arithmetic number, because the mean of its divisors is an integer number (3411408).

Almost surely, 2^343389375 is an apocalyptic number.

343389375 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

343389375 is an abundant number, since it is smaller than the sum of its proper divisors (475348545).

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

343389375 is an equidigital number, since it uses as much as digits as its factorization.

343389375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 51 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 343389375 is about 18530.7683326947. The cubic root of 343389375 is about 700.2647807842.

The spelling of 343389375 in words is "three hundred forty-three million, three hundred eighty-nine thousand, three hundred seventy-five".