455443320 has 128 divisors (see below), whose sum is σ = 1420001280. Its totient is φ = 116736000.

The previous prime is 455443291. The next prime is 455443333. The reversal of 455443320 is 23344554.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710200 + ... + 710840.

It is an arithmetic number, because the mean of its divisors is an integer number (11093760).

Almost surely, 2^455443320 is an apocalyptic number.

455443320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455443320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710000640).

455443320 is an abundant number, since it is smaller than the sum of its proper divisors (964557960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455443320 is a wasteful number, since it uses less digits than its factorization.

455443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 455443320 is about 21341.1180588084. The cubic root of 455443320 is about 769.3868847347.

Adding to 455443320 its reverse (23344554), we get a palindrome (478787874).

It can be divided in two parts, 4554 and 43320, that added together give a palindrome (47874).

The spelling of 455443320 in words is "four hundred fifty-five million, four hundred forty-three thousand, three hundred twenty".