340433239 has 2 divisors, whose sum is σ = 340433240. Its totient is φ = 340433238.

The previous prime is 340433207. The next prime is 340433293. The reversal of 340433239 is 932334043.

Together with next prime (340433293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340433239 - 2⁵ = 340433207 is a prime.

It is a super-2 number, since 2×340433239² = 231789580432062242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340433239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340433299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170216619 + 170216620.

It is an arithmetic number, because the mean of its divisors is an integer number (170216620).

Almost surely, 2^340433239 is an apocalyptic number.

340433239 is a deficient number, since it is larger than the sum of its proper divisors (1).

340433239 is an equidigital number, since it uses as much as digits as its factorization.

340433239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 340433239 is about 18450.8330164250. The cubic root of 340433239 is about 698.2495303820.

The spelling of 340433239 in words is "three hundred forty million, four hundred thirty-three thousand, two hundred thirty-nine".