3631222044 has 72 divisors (see below), whose sum is σ = 9324020160. Its totient is φ = 1191370752.

The previous prime is 3631222039. The next prime is 3631222051. The reversal of 3631222044 is 4402221363.

3631222044 is a `hidden beast` number, since 3 + 631 + 2 + 2 + 20 + 4 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3631221999 and 3631222017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1002124 + ... + 1005740.

It is an arithmetic number, because the mean of its divisors is an integer number (129500280).

Almost surely, 2^3631222044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3631222044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4662010080).

3631222044 is an abundant number, since it is smaller than the sum of its proper divisors (5692798116).

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

3631222044 is a wasteful number, since it uses less digits than its factorization.

3631222044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 3631222044 is about 60259.6220034610. The cubic root of 3631222044 is about 1537.0368111772.

The spelling of 3631222044 in words is "three billion, six hundred thirty-one million, two hundred twenty-two thousand, forty-four".