454220044520 has 128 divisors (see below), whose sum is σ = 1125132128640. Its totient is φ = 163661783040.

The previous prime is 454220044471. The next prime is 454220044529. The reversal of 454220044520 is 25440022454.

It is not an unprimeable number, because it can be changed into a prime (454220044529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24160244 + ... + 24179036.

It is an arithmetic number, because the mean of its divisors is an integer number (8790094755).

Almost surely, 2^454220044520 is an apocalyptic number.

454220044520 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 454220044520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562566064320).

454220044520 is an abundant number, since it is smaller than the sum of its proper divisors (670912084120).

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

454220044520 is a wasteful number, since it uses less digits than its factorization.

454220044520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315 (or 19311 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 454220044520 its reverse (25440022454), we get a palindrome (479660066974).

The spelling of 454220044520 in words is "four hundred fifty-four billion, two hundred twenty million, forty-four thousand, five hundred twenty".