343240356 has 24 divisors (see below), whose sum is σ = 820429344. Its totient is φ = 111622720.

The previous prime is 343240343. The next prime is 343240357. The reversal of 343240356 is 653042343.

It is not an unprimeable number, because it can be changed into a prime (343240357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348330 + ... + 349313.

It is an arithmetic number, because the mean of its divisors is an integer number (34184556).

Almost surely, 2^343240356 is an apocalyptic number.

It is an amenable number.

343240356 is an abundant number, since it is smaller than the sum of its proper divisors (477188988).

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

343240356 is a wasteful number, since it uses less digits than its factorization.

343240356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697691 (or 697689 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

The square root of 343240356 is about 18526.7470431266. The cubic root of 343240356 is about 700.1634693054.

Adding to 343240356 its reverse (653042343), we get a palindrome (996282699).

The spelling of 343240356 in words is "three hundred forty-three million, two hundred forty thousand, three hundred fifty-six".