3631423500 has 144 divisors (see below), whose sum is σ = 11851388640. Its totient is φ = 934953600.

The previous prime is 3631423493. The next prime is 3631423501. The reversal of 3631423500 is 53241363.

It is a happy number.

3631423500 is a `hidden beast` number, since 3 + 631 + 4 + 23 + 5 + 0 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (3631423501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116587 + ... + 144413.

It is an arithmetic number, because the mean of its divisors is an integer number (82301310).

Almost surely, 2^3631423500 is an apocalyptic number.

3631423500 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 3631423500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5925694320).

3631423500 is an abundant number, since it is smaller than the sum of its proper divisors (8219965140).

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

3631423500 is a wasteful number, since it uses less digits than its factorization.

3631423500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27881 (or 27866 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3631423500 is about 60261.2935473509. The cubic root of 3631423500 is about 1537.0652349932.

Adding to 3631423500 its reverse (53241363), we get a palindrome (3684664863).

The spelling of 3631423500 in words is "three billion, six hundred thirty-one million, four hundred twenty-three thousand, five hundred".