454666520 has 128 divisors (see below), whose sum is σ = 1305469440. Its totient is φ = 138378240.

The previous prime is 454666519. The next prime is 454666529. The reversal of 454666520 is 25666454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454666529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130724 + ... + 134156.

It is an arithmetic number, because the mean of its divisors is an integer number (10198980).

Almost surely, 2^454666520 is an apocalyptic number.

454666520 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 454666520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652734720).

454666520 is an abundant number, since it is smaller than the sum of its proper divisors (850802920).

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

454666520 is a wasteful number, since it uses less digits than its factorization.

454666520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 454666520 is about 21322.9106831127. The cubic root of 454666520 is about 768.9492160459.

The spelling of 454666520 in words is "four hundred fifty-four million, six hundred sixty-six thousand, five hundred twenty".