340455211 has 4 divisors (see below), whose sum is σ = 341344512. Its totient is φ = 339565912.

The previous prime is 340455197. The next prime is 340455229. The reversal of 340455211 is 112554043.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340455211 - 2⁵ = 340455179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340555211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444076 + ... + 444841.

It is an arithmetic number, because the mean of its divisors is an integer number (85336128).

Almost surely, 2^340455211 is an apocalyptic number.

340455211 is a deficient number, since it is larger than the sum of its proper divisors (889301).

340455211 is an equidigital number, since it uses as much as digits as its factorization.

340455211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889300.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 340455211 is about 18451.4284270893. The cubic root of 340455211 is about 698.2645520337.

The spelling of 340455211 in words is "three hundred forty million, four hundred fifty-five thousand, two hundred eleven".