4040453 has 4 divisors (see below), whose sum is σ = 4058028. Its totient is φ = 4022880.

The previous prime is 4040431. The next prime is 4040459. The reversal of 4040453 is 3540404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2316484 + 1723969 = 1522^2 + 1313^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040453 - 2⁶ = 4040389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040459) 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, 8438 + ... + 8903.

It is an arithmetic number, because the mean of its divisors is an integer number (1014507).

Almost surely, 2^4040453 is an apocalyptic number.

It is an amenable number.

4040453 is a deficient number, since it is larger than the sum of its proper divisors (17575).

4040453 is a wasteful number, since it uses less digits than its factorization.

4040453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17574.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4040453 is about 2010.0878090273. The cubic root of 4040453 is about 159.2734374327.

Adding to 4040453 its reverse (3540404), we get a palindrome (7580857).

It can be divided in two parts, 40404 and 53, that multiplied together give a palindrome (2141412).

The spelling of 4040453 in words is "four million, forty thousand, four hundred fifty-three".