440163453 has 4 divisors (see below), whose sum is σ = 586884608. Its totient is φ = 293442300.

The previous prime is 440163379. The next prime is 440163457. The reversal of 440163453 is 354361044.

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 440163453 - 2²⁰ = 439114877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440163453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440163457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73360573 + ... + 73360578.

It is an arithmetic number, because the mean of its divisors is an integer number (146721152).

Almost surely, 2^440163453 is an apocalyptic number.

It is an amenable number.

440163453 is a deficient number, since it is larger than the sum of its proper divisors (146721155).

440163453 is a wasteful number, since it uses less digits than its factorization.

440163453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146721154.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 440163453 is about 20980.0727596450. The cubic root of 440163453 is about 760.6846629148.

The spelling of 440163453 in words is "four hundred forty million, one hundred sixty-three thousand, four hundred fifty-three".