3645311382 has 24 divisors (see below), whose sum is σ = 7905081600. Its totient is φ = 1214041200.

The previous prime is 3645311381. The next prime is 3645311441. The reversal of 3645311382 is 2831135463.

3645311382 is a `hidden beast` number, since 3 + 645 + 3 + 1 + 1 + 3 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645311381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67257 + ... + 108692.

It is an arithmetic number, because the mean of its divisors is an integer number (329378400).

Almost surely, 2^3645311382 is an apocalyptic number.

3645311382 is an abundant number, since it is smaller than the sum of its proper divisors (4259770218).

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

3645311382 is a wasteful number, since it uses less digits than its factorization.

3645311382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177108 (or 177105 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 3645311382 is about 60376.4141200850. The cubic root of 3645311382 is about 1539.0221742781.

The spelling of 3645311382 in words is "three billion, six hundred forty-five million, three hundred eleven thousand, three hundred eighty-two".