340442077 has 2 divisors, whose sum is σ = 340442078. Its totient is φ = 340442076.

The previous prime is 340442041. The next prime is 340442087. The reversal of 340442077 is 770244043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182412036 + 158030041 = 13506^2 + 12571^2 .

It is an emirp because it is prime and its reverse (770244043) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340442077 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340442027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170221038 + 170221039.

It is an arithmetic number, because the mean of its divisors is an integer number (170221039).

Almost surely, 2^340442077 is an apocalyptic number.

It is an amenable number.

340442077 is a deficient number, since it is larger than the sum of its proper divisors (1).

340442077 is an equidigital number, since it uses as much as digits as its factorization.

340442077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 340442077 is about 18451.0725162523. The cubic root of 340442077 is about 698.2555727571.

The spelling of 340442077 in words is "three hundred forty million, four hundred forty-two thousand, seventy-seven".