2421453 has 4 divisors (see below), whose sum is σ = 3228608. Its totient is φ = 1614300.

The previous prime is 2421451. The next prime is 2421467. The reversal of 2421453 is 3541242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2421453 - 2¹ = 2421451 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421451) 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, 403573 + ... + 403578.

It is an arithmetic number, because the mean of its divisors is an integer number (807152).

2^2421453 is an apocalyptic number.

It is an amenable number.

2421453 is a deficient number, since it is larger than the sum of its proper divisors (807155).

2421453 is an equidigital number, since it uses as much as digits as its factorization.

2421453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807154.

The product of its digits is 960, while the sum is 21.

The square root of 2421453 is about 1556.1018604192. The cubic root of 2421453 is about 134.2843335024.

Adding to 2421453 its reverse (3541242), we get a palindrome (5962695).

The spelling of 2421453 in words is "two million, four hundred twenty-one thousand, four hundred fifty-three".