2043453 has 4 divisors (see below), whose sum is σ = 2724608. Its totient is φ = 1362300.

The previous prime is 2043449. The next prime is 2043467. The reversal of 2043453 is 3543402.

It is a happy number.

2043453 is nontrivially palindromic in base 4.

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 2043453 - 2² = 2043449 is a prime.

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 (2043413) 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, 340573 + ... + 340578.

It is an arithmetic number, because the mean of its divisors is an integer number (681152).

2^2043453 is an apocalyptic number.

It is an amenable number.

2043453 is a deficient number, since it is larger than the sum of its proper divisors (681155).

2043453 is an equidigital number, since it uses as much as digits as its factorization.

2043453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681154.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 2043453 is about 1429.4939664091. The cubic root of 2043453 is about 126.8980312804.

Adding to 2043453 its reverse (3543402), we get a palindrome (5586855).

The spelling of 2043453 in words is "two million, forty-three thousand, four hundred fifty-three".