453489520 has 80 divisors (see below), whose sum is σ = 1178362080. Its totient is φ = 160870400.

The previous prime is 453489499. The next prime is 453489521. The reversal of 453489520 is 25984354.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453489521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29796 + ... + 42364.

It is an arithmetic number, because the mean of its divisors is an integer number (14729526).

Almost surely, 2^453489520 is an apocalyptic number.

453489520 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 453489520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589181040).

453489520 is an abundant number, since it is smaller than the sum of its proper divisors (724872560).

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

453489520 is a wasteful number, since it uses less digits than its factorization.

453489520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12634 (or 12628 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 453489520 is about 21295.2933767065. The cubic root of 453489520 is about 768.2851136865.

The spelling of 453489520 in words is "four hundred fifty-three million, four hundred eighty-nine thousand, five hundred twenty".