340640333 has 4 divisors (see below), whose sum is σ = 371607648. Its totient is φ = 309673020.

The previous prime is 340640329. The next prime is 340640347. The reversal of 340640333 is 333046043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340640333 - 2² = 340640329 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 (340640353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15483641 + ... + 15483662.

It is an arithmetic number, because the mean of its divisors is an integer number (92901912).

Almost surely, 2^340640333 is an apocalyptic number.

It is an amenable number.

340640333 is a deficient number, since it is larger than the sum of its proper divisors (30967315).

340640333 is a wasteful number, since it uses less digits than its factorization.

340640333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30967314.

The product of its (nonzero) digits is 7776, while the sum is 26.

The square root of 340640333 is about 18456.4442133364. Note that the first 3 decimals coincide. The cubic root of 340640333 is about 698.3910891956.

Adding to 340640333 its reverse (333046043), we get a palindrome (673686376).

The spelling of 340640333 in words is "three hundred forty million, six hundred forty thousand, three hundred thirty-three".