3630818520 has 768 divisors, whose sum is σ = 15359984640. Its totient is φ = 752467968.

The previous prime is 3630818501. The next prime is 3630818533. The reversal of 3630818520 is 258180363.

3630818520 is a `hidden beast` number, since 3 + 630 + 8 + 18 + 5 + 2 + 0 = 666.

3630818520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 49737204 + ... + 49737276.

It is an arithmetic number, because the mean of its divisors is an integer number (19999980).

Almost surely, 2^3630818520 is an apocalyptic number.

3630818520 is a gapful number since it is divisible by the number (30) 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 3630818520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7679992320).

3630818520 is an abundant number, since it is smaller than the sum of its proper divisors (11729166120).

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

3630818520 is a wasteful number, since it uses less digits than its factorization.

3630818520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3630818520 is about 60256.2736982632. The cubic root of 3630818520 is about 1536.9798740350.

Adding to 3630818520 its reverse (258180363), we get a palindrome (3888998883).

The spelling of 3630818520 in words is "three billion, six hundred thirty million, eight hundred eighteen thousand, five hundred twenty".