339949943 has 4 divisors (see below), whose sum is σ = 340913328. Its totient is φ = 338986560.

The previous prime is 339949933. The next prime is 339949997. The reversal of 339949943 is 349949933.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349949933 = 1481 ⋅236293.

It is a cyclic number.

It is not a de Polignac number, because 339949943 - 2²⁴ = 323172727 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 (339949903) 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, 481163 + ... + 481868.

It is an arithmetic number, because the mean of its divisors is an integer number (85228332).

Almost surely, 2^339949943 is an apocalyptic number.

339949943 is a deficient number, since it is larger than the sum of its proper divisors (963385).

339949943 is an equidigital number, since it uses as much as digits as its factorization.

339949943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963384.

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

The square root of 339949943 is about 18437.7315036314. The cubic root of 339949943 is about 697.9189506141.

The spelling of 339949943 in words is "three hundred thirty-nine million, nine hundred forty-nine thousand, nine hundred forty-three".