404113453 has 4 divisors (see below), whose sum is σ = 404155548. Its totient is φ = 404071360.

The previous prime is 404113417. The next prime is 404113481. The reversal of 404113453 is 354311404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 217326564 + 186786889 = 14742^2 + 13667^2 .

It is a cyclic number.

It is not a de Polignac number, because 404113453 - 2²¹ = 402016301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404113253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173 + ... + 28453.

It is an arithmetic number, because the mean of its divisors is an integer number (101038887).

Almost surely, 2^404113453 is an apocalyptic number.

It is an amenable number.

404113453 is a deficient number, since it is larger than the sum of its proper divisors (42095).

404113453 is a wasteful number, since it uses less digits than its factorization.

404113453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42094.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 404113453 is about 20102.5732929891. The cubic root of 404113453 is about 739.3233728633.

Adding to 404113453 its reverse (354311404), we get a palindrome (758424857).

The spelling of 404113453 in words is "four hundred four million, one hundred thirteen thousand, four hundred fifty-three".