3634620822 has 80 divisors (see below), whose sum is σ = 9324941472. Its totient is φ = 1036540800.

The previous prime is 3634620817. The next prime is 3634620841. The reversal of 3634620822 is 2280264363.

3634620822 is a `hidden beast` number, since 3 + 6 + 3 + 4 + 620 + 8 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 678868 + ... + 684200.

Almost surely, 2^3634620822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3634620822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4662470736).

3634620822 is an abundant number, since it is smaller than the sum of its proper divisors (5690320650).

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

3634620822 is a wasteful number, since it uses less digits than its factorization.

3634620822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955 (or 5946 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 3634620822 is about 60287.8165303737. The cubic root of 3634620822 is about 1537.5162106560.

The spelling of 3634620822 in words is "three billion, six hundred thirty-four million, six hundred twenty thousand, eight hundred twenty-two".