404100453 has 4 divisors (see below), whose sum is σ = 538800608. Its totient is φ = 269400300.

The previous prime is 404100427. The next prime is 404100467. The reversal of 404100453 is 354001404.

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 a de Polignac number, because none of the positive numbers 2^k-404100453 is a prime.

It is a super-2 number, since 2×404100453² = 326594352229610418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404100553) 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, 67350073 + ... + 67350078.

It is an arithmetic number, because the mean of its divisors is an integer number (134700152).

Almost surely, 2^404100453 is an apocalyptic number.

It is an amenable number.

404100453 is a deficient number, since it is larger than the sum of its proper divisors (134700155).

404100453 is a wasteful number, since it uses less digits than its factorization.

404100453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134700154.

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

The square root of 404100453 is about 20102.2499486998. The cubic root of 404100453 is about 739.3154449685.

Adding to 404100453 its reverse (354001404), we get a palindrome (758101857).

The spelling of 404100453 in words is "four hundred four million, one hundred thousand, four hundred fifty-three".