20041453 has 4 divisors (see below), whose sum is σ = 21220380. Its totient is φ = 18862528.

The previous prime is 20041433. The next prime is 20041471. The reversal of 20041453 is 35414002.

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 12659364 + 7382089 = 3558^2 + 2717^2 .

It is a cyclic number.

It is not a de Polignac number, because 20041453 - 2¹⁷ = 19910381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20041453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041403) 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, 589438 + ... + 589471.

It is an arithmetic number, because the mean of its divisors is an integer number (5305095).

Almost surely, 2^20041453 is an apocalyptic number.

It is an amenable number.

20041453 is a deficient number, since it is larger than the sum of its proper divisors (1178927).

20041453 is a wasteful number, since it uses less digits than its factorization.

20041453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178926.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20041453 is about 4476.7681423098. The cubic root of 20041453 is about 271.6291668331.

Adding to 20041453 its reverse (35414002), we get a palindrome (55455455).

The spelling of 20041453 in words is "twenty million, forty-one thousand, four hundred fifty-three".