2421233 has 8 divisors (see below), whose sum is σ = 2544000. Its totient is φ = 2304324.

The previous prime is 2421229. The next prime is 2421247. The reversal of 2421233 is 3321242.

It is not a de Polignac number, because 2421233 - 2² = 2421229 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421203) 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, 12068 + ... + 12266.

It is an arithmetic number, because the mean of its divisors is an integer number (318000).

2^2421233 is an apocalyptic number.

2421233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2421233 is a deficient number, since it is larger than the sum of its proper divisors (122767).

2421233 is an frugal number, since it uses more digits than its factorization.

2421233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 222 counting only the distinct ones).

The product of its digits is 288, while the sum is 17.

The square root of 2421233 is about 1556.0311693536. The cubic root of 2421233 is about 134.2802665987.

Adding to 2421233 its reverse (3321242), we get a palindrome (5742475).

Subtracting 2421233 from its reverse (3321242), we obtain a palindrome (900009).

The spelling of 2421233 in words is "two million, four hundred twenty-one thousand, two hundred thirty-three".