455319989 has 16 divisors (see below), whose sum is σ = 469421568. Its totient is φ = 441518832.

The previous prime is 455319967. The next prime is 455320031. The reversal of 455319989 is 989913554.

It is a happy number.

It is not a de Polignac number, because 455319989 - 2¹⁶ = 455254453 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 455319989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455319919) 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, 1482974 + ... + 1483280.

It is an arithmetic number, because the mean of its divisors is an integer number (29338848).

Almost surely, 2^455319989 is an apocalyptic number.

It is an amenable number.

455319989 is a deficient number, since it is larger than the sum of its proper divisors (14101579).

455319989 is a wasteful number, since it uses less digits than its factorization.

455319989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 1749600, while the sum is 53.

The square root of 455319989 is about 21338.2283472644. The cubic root of 455319989 is about 769.3174301937.

It can be divided in two parts, 4553 and 19989, that added together give a palindrome (24542).

The spelling of 455319989 in words is "four hundred fifty-five million, three hundred nineteen thousand, nine hundred eighty-nine".