340726651 has 2 divisors, whose sum is σ = 340726652. Its totient is φ = 340726650.

The previous prime is 340726637. The next prime is 340726717. The reversal of 340726651 is 156627043.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (156627043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340726651 - 2¹¹ = 340724603 is a prime.

It is not a weakly prime, because it can be changed into another prime (340726151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170363325 + 170363326.

It is an arithmetic number, because the mean of its divisors is an integer number (170363326).

Almost surely, 2^340726651 is an apocalyptic number.

340726651 is a deficient number, since it is larger than the sum of its proper divisors (1).

340726651 is an equidigital number, since it uses as much as digits as its factorization.

340726651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 340726651 is about 18458.7824896443. The cubic root of 340726651 is about 698.4500748029.

The spelling of 340726651 in words is "three hundred forty million, seven hundred twenty-six thousand, six hundred fifty-one".