340432311 has 8 divisors (see below), whose sum is σ = 454084864. Its totient is φ = 226867320.

The previous prime is 340432289. The next prime is 340432319. The reversal of 340432311 is 113234043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340432311 - 2⁹ = 340431799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340432319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12205 + ... + 28806.

It is an arithmetic number, because the mean of its divisors is an integer number (56760608).

Almost surely, 2^340432311 is an apocalyptic number.

340432311 is a deficient number, since it is larger than the sum of its proper divisors (113652553).

340432311 is a wasteful number, since it uses less digits than its factorization.

340432311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43781.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 340432311 is about 18450.8078684918. The cubic root of 340432311 is about 698.2488959197.

Adding to 340432311 its reverse (113234043), we get a palindrome (453666354).

The spelling of 340432311 in words is "three hundred forty million, four hundred thirty-two thousand, three hundred eleven".