3645182408 has 64 divisors (see below), whose sum is σ = 8043235200. Its totient is φ = 1516193280.

The previous prime is 3645182377. The next prime is 3645182441. The reversal of 3645182408 is 8042815463.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 15 ways as a sum of consecutive naturals, for example, 448283 + ... + 456341.

It is an arithmetic number, because the mean of its divisors is an integer number (125675550).

Almost surely, 2^3645182408 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 3645182408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4021617600).

3645182408 is an abundant number, since it is smaller than the sum of its proper divisors (4398052792).

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

3645182408 is a wasteful number, since it uses less digits than its factorization.

3645182408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8310 (or 8306 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 3645182408 is about 60375.3460279939. The cubic root of 3645182408 is about 1539.0040234567.

The spelling of 3645182408 in words is "three billion, six hundred forty-five million, one hundred eighty-two thousand, four hundred eight".