343356426 has 72 divisors (see below), whose sum is σ = 877747104. Its totient is φ = 96702480.

The previous prime is 343356421. The next prime is 343356451. The reversal of 343356426 is 624653343.

343356426 is a `hidden beast` number, since 3 + 4 + 3 + 3 + 5 + 642 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343356421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59881 + ... + 65363.

It is an arithmetic number, because the mean of its divisors is an integer number (12190932).

Almost surely, 2^343356426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343356426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438873552).

343356426 is an abundant number, since it is smaller than the sum of its proper divisors (534390678).

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

343356426 is a wasteful number, since it uses less digits than its factorization.

343356426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576 (or 5566 counting only the distinct ones).

The product of its digits is 155520, while the sum is 36.

The square root of 343356426 is about 18529.8792764551. The cubic root of 343356426 is about 700.2423827293.

The spelling of 343356426 in words is "three hundred forty-three million, three hundred fifty-six thousand, four hundred twenty-six".