453630520 has 64 divisors (see below), whose sum is σ = 1168473600. Its totient is φ = 155264640.

The previous prime is 453630503. The next prime is 453630523. The reversal of 453630520 is 25036354.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453630523) 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, 233955 + ... + 235885.

It is an arithmetic number, because the mean of its divisors is an integer number (18257400).

Almost surely, 2^453630520 is an apocalyptic number.

453630520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453630520 is an abundant number, since it is smaller than the sum of its proper divisors (714843080).

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

453630520 is a wasteful number, since it uses less digits than its factorization.

453630520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788 (or 2784 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 453630520 is about 21298.6037101027. The cubic root of 453630520 is about 768.3647310911.

Adding to 453630520 its reverse (25036354), we get a palindrome (478666874).

The spelling of 453630520 in words is "four hundred fifty-three million, six hundred thirty thousand, five hundred twenty".