2403243 has 8 divisors (see below), whose sum is σ = 3560400. Its totient is φ = 1602144.

The previous prime is 2403229. The next prime is 2403263. The reversal of 2403243 is 3423042.

It is not a de Polignac number, because 2403243 - 2⁵ = 2403211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2403263) 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, 44478 + ... + 44531.

It is an arithmetic number, because the mean of its divisors is an integer number (445050).

2^2403243 is an apocalyptic number.

2403243 is a deficient number, since it is larger than the sum of its proper divisors (1157157).

2403243 is an equidigital number, since it uses as much as digits as its factorization.

2403243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89018 (or 89012 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2403243 is about 1550.2396588915. The cubic root of 2403243 is about 133.9468676261.

Adding to 2403243 its reverse (3423042), we get a palindrome (5826285).

The spelling of 2403243 in words is "two million, four hundred three thousand, two hundred forty-three".