3638225124 has 18 divisors (see below), whose sum is σ = 9196624710. Its totient is φ = 1212741696.

The previous prime is 3638225111. The next prime is 3638225161. The reversal of 3638225124 is 4215228363.

3638225124 is a `hidden beast` number, since 3 + 6 + 382 + 251 + 24 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1824998400 + 1813226724 = 42720^2 + 42582^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 101061809 = 3638225124 / (3 + 6 + 3 + 8 + 2 + 2 + 5 + 1 + 2 + 4).

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 5 ways as a sum of consecutive naturals, for example, 50530869 + ... + 50530940.

It is an arithmetic number, because the mean of its divisors is an integer number (510923595).

Almost surely, 2^3638225124 is an apocalyptic number.

It is an amenable number.

3638225124 is an abundant number, since it is smaller than the sum of its proper divisors (5558399586).

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

3638225124 is a wasteful number, since it uses less digits than its factorization.

3638225124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101061819 (or 101061814 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 3638225124 is about 60317.7015808792. The cubic root of 3638225124 is about 1538.0242730021.

The spelling of 3638225124 in words is "three billion, six hundred thirty-eight million, two hundred twenty-five thousand, one hundred twenty-four".