454522320440 has 32 divisors (see below), whose sum is σ = 1024684452000. Its totient is φ = 181451731584.

The previous prime is 454522320419. The next prime is 454522320449. The reversal of 454522320440 is 44023225454.

It is a self number, because there is not a number n which added to its sum of digits gives 454522320440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454522320449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11141780 + ... + 11182499.

It is an arithmetic number, because the mean of its divisors is an integer number (32021389125).

Almost surely, 2^454522320440 is an apocalyptic number.

454522320440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454522320440 is an abundant number, since it is smaller than the sum of its proper divisors (570162131560).

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

454522320440 is a wasteful number, since it uses less digits than its factorization.

454522320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22324799 (or 22324795 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 454522320440 its reverse (44023225454), we get a palindrome (498545545894).

The spelling of 454522320440 in words is "four hundred fifty-four billion, five hundred twenty-two million, three hundred twenty thousand, four hundred forty".