343438493 has 4 divisors (see below), whose sum is σ = 343534560. Its totient is φ = 343342428.

The previous prime is 343438483. The next prime is 343438499. The reversal of 343438493 is 394834343.

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: 394834343 = 331 ⋅1192853.

It is a cyclic number.

It is not a de Polignac number, because 343438493 - 2⁸ = 343438237 is a prime.

It is a super-2 number, since 2×343438493² = 235899996948222098, which contains 22 as substring.

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 343438493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343438499) 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, 42455 + ... + 49892.

It is an arithmetic number, because the mean of its divisors is an integer number (85883640).

Almost surely, 2^343438493 is an apocalyptic number.

It is an amenable number.

343438493 is a deficient number, since it is larger than the sum of its proper divisors (96067).

343438493 is an equidigital number, since it uses as much as digits as its factorization.

343438493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96066.

The product of its digits is 373248, while the sum is 41.

The square root of 343438493 is about 18532.0935946266. The cubic root of 343438493 is about 700.2981675342.

The spelling of 343438493 in words is "three hundred forty-three million, four hundred thirty-eight thousand, four hundred ninety-three".