340031239 has 4 divisors (see below), whose sum is σ = 357927640. Its totient is φ = 322134840.

The previous prime is 340031227. The next prime is 340031243. The reversal of 340031239 is 932130043.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 340031239 - 2¹¹ = 340029191 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 (340031249) 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, 8948172 + ... + 8948209.

It is an arithmetic number, because the mean of its divisors is an integer number (89481910).

Almost surely, 2^340031239 is an apocalyptic number.

340031239 is a deficient number, since it is larger than the sum of its proper divisors (17896401).

340031239 is a wasteful number, since it uses less digits than its factorization.

340031239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17896400.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 340031239 is about 18439.9359814507. The cubic root of 340031239 is about 697.9745798796.

The spelling of 340031239 in words is "three hundred forty million, thirty-one thousand, two hundred thirty-nine".