340212401 has 2 divisors, whose sum is σ = 340212402. Its totient is φ = 340212400.

The previous prime is 340212359. The next prime is 340212407. The reversal of 340212401 is 104212043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 326344225 + 13868176 = 18065^2 + 3724^2 .

It is a cyclic number.

It is not a de Polignac number, because 340212401 - 2⁶ = 340212337 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340212401.

It is not a weakly prime, because it can be changed into another prime (340212407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170106200 + 170106201.

It is an arithmetic number, because the mean of its divisors is an integer number (170106201).

Almost surely, 2^340212401 is an apocalyptic number.

It is an amenable number.

340212401 is a deficient number, since it is larger than the sum of its proper divisors (1).

340212401 is an equidigital number, since it uses as much as digits as its factorization.

340212401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 340212401 is about 18444.8475461306. The cubic root of 340212401 is about 698.0985136116.

Adding to 340212401 its reverse (104212043), we get a palindrome (444424444).

The spelling of 340212401 in words is "three hundred forty million, two hundred twelve thousand, four hundred one".