2320403 has 4 divisors (see below), whose sum is σ = 2338248. Its totient is φ = 2302560.

The previous prime is 2320399. The next prime is 2320421. The reversal of 2320403 is 3040232.

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 2320403 - 2² = 2320399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2322403) 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, 8726 + ... + 8987.

It is an arithmetic number, because the mean of its divisors is an integer number (584562).

2^2320403 is an apocalyptic number.

2320403 is a deficient number, since it is larger than the sum of its proper divisors (17845).

2320403 is a wasteful number, since it uses less digits than its factorization.

2320403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17844.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 2320403 is about 1523.2869066594. The cubic root of 2320403 is about 132.3897837457.

Adding to 2320403 its reverse (3040232), we get a palindrome (5360635).

The spelling of 2320403 in words is "two million, three hundred twenty thousand, four hundred three".