343404356 has 12 divisors (see below), whose sum is σ = 615615420. Its totient is φ = 167514240.

The previous prime is 343404353. The next prime is 343404359. The reversal of 343404356 is 653404343.

It is an interprime number because it is at equal distance from previous prime (343404353) and next prime (343404359).

It can be written as a sum of positive squares in 2 ways, for example, as 152522500 + 190881856 = 12350^2 + 13816^2 .

It is not an unprimeable number, because it can be changed into a prime (343404353) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1046801 + ... + 1047128.

It is an arithmetic number, because the mean of its divisors is an integer number (51301285).

Almost surely, 2^343404356 is an apocalyptic number.

It is an amenable number.

343404356 is a deficient number, since it is larger than the sum of its proper divisors (272211064).

343404356 is a wasteful number, since it uses less digits than its factorization.

343404356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093974 (or 2093972 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 343404356 is about 18531.1725478989. The cubic root of 343404356 is about 700.2749640872.

Adding to 343404356 its reverse (653404343), we get a palindrome (996808699).

The spelling of 343404356 in words is "three hundred forty-three million, four hundred four thousand, three hundred fifty-six".