454047520 has 48 divisors (see below), whose sum is σ = 1083346488. Its totient is φ = 179814400.

The previous prime is 454047511. The next prime is 454047547. The reversal of 454047520 is 25740454.

It can be written as a sum of positive squares in 4 ways, for example, as 333135504 + 120912016 = 18252^2 + 10996^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2112 + ... + 30208.

Almost surely, 2^454047520 is an apocalyptic number.

454047520 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 454047520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541673244).

454047520 is an abundant number, since it is smaller than the sum of its proper divisors (629298968).

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

454047520 is a wasteful number, since it uses less digits than its factorization.

454047520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28213 (or 28205 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 454047520 is about 21308.3908355371. The cubic root of 454047520 is about 768.6000988264.

Adding to 454047520 its reverse (25740454), we get a palindrome (479787974).

The spelling of 454047520 in words is "four hundred fifty-four million, forty-seven thousand, five hundred twenty".