340144239 has 4 divisors (see below), whose sum is σ = 453525656. Its totient is φ = 226762824.

The previous prime is 340144229. The next prime is 340144247. The reversal of 340144239 is 932441043.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 340144239 - 2⁴ = 340144223 is a prime.

It is a super-3 number, since 3×340144239³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340144229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56690704 + ... + 56690709.

It is an arithmetic number, because the mean of its divisors is an integer number (113381414).

Almost surely, 2^340144239 is an apocalyptic number.

340144239 is a deficient number, since it is larger than the sum of its proper divisors (113381417).

340144239 is a wasteful number, since it uses less digits than its factorization.

340144239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113381416.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 340144239 is about 18442.9997288944. Note that the first 3 decimals coincide. The cubic root of 340144239 is about 698.0518888473.

The spelling of 340144239 in words is "three hundred forty million, one hundred forty-four thousand, two hundred thirty-nine".