340404211 has 24 divisors (see below), whose sum is σ = 413084672. Its totient is φ = 274352400.

The previous prime is 340404203. The next prime is 340404227. The reversal of 340404211 is 112404043.

It is not a de Polignac number, because 340404211 - 2³ = 340404203 is a prime.

It is a super-3 number, since 3×340404211³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (340404241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1782126 + ... + 1782316.

Almost surely, 2^340404211 is an apocalyptic number.

340404211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

340404211 is a deficient number, since it is larger than the sum of its proper divisors (72680461).

340404211 is an equidigital number, since it uses as much as digits as its factorization.

340404211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 340404211 is about 18450.0463685054. The cubic root of 340404211 is about 698.2296837462.

Adding to 340404211 its reverse (112404043), we get a palindrome (452808254).

The spelling of 340404211 in words is "three hundred forty million, four hundred four thousand, two hundred eleven".