343409880 has 128 divisors (see below), whose sum is σ = 1162771200. Its totient is φ = 80371200.

The previous prime is 343409879. The next prime is 343409887. The reversal of 343409880 is 88904343.

343409880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×343409880² = 235860691363228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343409887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33795 + ... + 42765.

It is an arithmetic number, because the mean of its divisors is an integer number (9084150).

Almost surely, 2^343409880 is an apocalyptic number.

343409880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343409880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581385600).

343409880 is an abundant number, since it is smaller than the sum of its proper divisors (819361320).

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

343409880 is a wasteful number, since it uses less digits than its factorization.

343409880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9025 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 343409880 is about 18531.3215934536. The cubic root of 343409880 is about 700.2787189397.

The spelling of 343409880 in words is "three hundred forty-three million, four hundred nine thousand, eight hundred eighty".