343743378 has 32 divisors (see below), whose sum is σ = 759490560. Its totient is φ = 102844560.

The previous prime is 343743353. The next prime is 343743391. The reversal of 343743378 is 873347343.

It is a happy number.

It is a super-3 number, since 3×343743378³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27750 + ... + 38177.

It is an arithmetic number, because the mean of its divisors is an integer number (23734080).

Almost surely, 2^343743378 is an apocalyptic number.

343743378 is an abundant number, since it is smaller than the sum of its proper divisors (415747182).

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

343743378 is a wasteful number, since it uses less digits than its factorization.

343743378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66022.

The product of its digits is 508032, while the sum is 42.

The square root of 343743378 is about 18540.3176348195. The cubic root of 343743378 is about 700.5053344278.

The spelling of 343743378 in words is "three hundred forty-three million, seven hundred forty-three thousand, three hundred seventy-eight".