343120949 has 4 divisors (see below), whose sum is σ = 343777536. Its totient is φ = 342464364.

The previous prime is 343120907. The next prime is 343121029. The reversal of 343120949 is 949021343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949021343 = 127 ⋅7472609.

It is a cyclic number.

It is not a de Polignac number, because 343120949 - 2²⁴ = 326343733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343120549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327509 + ... + 328554.

It is an arithmetic number, because the mean of its divisors is an integer number (85944384).

Almost surely, 2^343120949 is an apocalyptic number.

It is an amenable number.

343120949 is a deficient number, since it is larger than the sum of its proper divisors (656587).

343120949 is an equidigital number, since it uses as much as digits as its factorization.

343120949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656586.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 343120949 is about 18523.5242057228. The cubic root of 343120949 is about 700.0822685622.

The spelling of 343120949 in words is "three hundred forty-three million, one hundred twenty thousand, nine hundred forty-nine".