343399949 has 8 divisors (see below), whose sum is σ = 368722368. Its totient is φ = 318646720.

The previous prime is 343399921. The next prime is 343399951. The reversal of 343399949 is 949993343.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 343399949 - 2²⁴ = 326622733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343399949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343399549) 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 7 ways as a sum of consecutive naturals, for example, 141047 + ... + 143460.

It is an arithmetic number, because the mean of its divisors is an integer number (46090296).

Almost surely, 2^343399949 is an apocalyptic number.

It is an amenable number.

343399949 is a deficient number, since it is larger than the sum of its proper divisors (25322419).

343399949 is a wasteful number, since it uses less digits than its factorization.

343399949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284595.

The product of its digits is 2834352, while the sum is 53.

The square root of 343399949 is about 18531.0536397691. The cubic root of 343399949 is about 700.2719684690.

The spelling of 343399949 in words is "three hundred forty-three million, three hundred ninety-nine thousand, nine hundred forty-nine".