440241453 has 16 divisors (see below), whose sum is σ = 662904000. Its totient is φ = 288681840.

The previous prime is 440241449. The next prime is 440241491. The reversal of 440241453 is 354142044.

It is a happy number.

It is not a de Polignac number, because 440241453 - 2² = 440241449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440241443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132003 + ... + 135296.

It is an arithmetic number, because the mean of its divisors is an integer number (41431500).

Almost surely, 2^440241453 is an apocalyptic number.

It is an amenable number.

440241453 is a deficient number, since it is larger than the sum of its proper divisors (222662547).

440241453 is a wasteful number, since it uses less digits than its factorization.

440241453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267369 (or 267363 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 440241453 is about 20981.9315841035. The cubic root of 440241453 is about 760.7295931173.

Adding to 440241453 its reverse (354142044), we get a palindrome (794383497).

The spelling of 440241453 in words is "four hundred forty million, two hundred forty-one thousand, four hundred fifty-three".