343667380 has 144 divisors (see below), whose sum is σ = 891717120. Its totient is φ = 110702592.

The previous prime is 343667327. The next prime is 343667437. The reversal of 343667380 is 83766343.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1780564 + ... + 1780756.

It is an arithmetic number, because the mean of its divisors is an integer number (6192480).

Almost surely, 2^343667380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343667380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445858560).

343667380 is an abundant number, since it is smaller than the sum of its proper divisors (548049740).

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

343667380 is a wasteful number, since it uses less digits than its factorization.

343667380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 343667380 is about 18538.2679881374. The cubic root of 343667380 is about 700.4537058664.

The spelling of 343667380 in words is "three hundred forty-three million, six hundred sixty-seven thousand, three hundred eighty".