2421303 has 16 divisors (see below), whose sum is σ = 3438720. Its totient is φ = 1511136.

The previous prime is 2421283. The next prime is 2421311. The reversal of 2421303 is 3031242.

It is not a de Polignac number, because 2421303 - 2⁸ = 2421047 is a prime.

2421303 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5901 + ... + 6297.

It is an arithmetic number, because the mean of its divisors is an integer number (214920).

2^2421303 is an apocalyptic number.

2421303 is a deficient number, since it is larger than the sum of its proper divisors (1017417).

2421303 is a wasteful number, since it uses less digits than its factorization.

2421303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2421303 is about 1556.0536623137. The cubic root of 2421303 is about 134.2815606402.

Adding to 2421303 its reverse (3031242), we get a palindrome (5452545).

The spelling of 2421303 in words is "two million, four hundred twenty-one thousand, three hundred three".