343743400 has 384 divisors, whose sum is σ = 1147426560. Its totient is φ = 92160000.

The previous prime is 343743397. The next prime is 343743437. The reversal of 343743400 is 4347343.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3403350 + ... + 3403450.

It is an arithmetic number, because the mean of its divisors is an integer number (2988090).

Almost surely, 2^343743400 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 343743400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573713280).

343743400 is an abundant number, since it is smaller than the sum of its proper divisors (803683160).

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

343743400 is a wasteful number, since it uses less digits than its factorization.

343743400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 28.

The square root of 343743400 is about 18540.3182281211. The cubic root of 343743400 is about 700.5053493722.

The spelling of 343743400 in words is "three hundred forty-three million, seven hundred forty-three thousand, four hundred".