340233403 has 4 divisors (see below), whose sum is σ = 340275168. Its totient is φ = 340191640.

The previous prime is 340233373. The next prime is 340233407. The reversal of 340233403 is 304332043.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 304332043 = 4177 ⋅72859.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340233403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340233407) 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, 4243 + ... + 26428.

It is an arithmetic number, because the mean of its divisors is an integer number (85068792).

Almost surely, 2^340233403 is an apocalyptic number.

340233403 is a deficient number, since it is larger than the sum of its proper divisors (41765).

340233403 is a wasteful number, since it uses less digits than its factorization.

340233403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41764.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 340233403 is about 18445.4168562275. The cubic root of 340233403 is about 698.1128783274.

Adding to 340233403 its reverse (304332043), we get a palindrome (644565446).

The spelling of 340233403 in words is "three hundred forty million, two hundred thirty-three thousand, four hundred three".