453506520 has 64 divisors (see below), whose sum is σ = 1367043840. Its totient is φ = 120355200.

The previous prime is 453506507. The next prime is 453506527. The reversal of 453506520 is 25605354.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453506527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16365 + ... + 34275.

It is an arithmetic number, because the mean of its divisors is an integer number (21360060).

Almost surely, 2^453506520 is an apocalyptic number.

453506520 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 453506520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683521920).

453506520 is an abundant number, since it is smaller than the sum of its proper divisors (913537320).

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

453506520 is a wasteful number, since it uses less digits than its factorization.

453506520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18136 (or 18132 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 453506520 is about 21295.6925221980. The cubic root of 453506520 is about 768.2947138229.

The spelling of 453506520 in words is "four hundred fifty-three million, five hundred six thousand, five hundred twenty".