340290029 has 2 divisors, whose sum is σ = 340290030. Its totient is φ = 340290028.

The previous prime is 340290001. The next prime is 340290059. The reversal of 340290029 is 920092043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323928004 + 16362025 = 17998^2 + 4045^2 .

It is a cyclic number.

It is not a de Polignac number, because 340290029 - 2⁸ = 340289773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 340289983 and 340290010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340290059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170145014 + 170145015.

It is an arithmetic number, because the mean of its divisors is an integer number (170145015).

Almost surely, 2^340290029 is an apocalyptic number.

It is an amenable number.

340290029 is a deficient number, since it is larger than the sum of its proper divisors (1).

340290029 is an equidigital number, since it uses as much as digits as its factorization.

340290029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 340290029 is about 18446.9517536096. The cubic root of 340290029 is about 698.1516058074.

The spelling of 340290029 in words is "three hundred forty million, two hundred ninety thousand, twenty-nine".