3649521382 has 16 divisors (see below), whose sum is σ = 6006616560. Its totient is φ = 1652612832.

The previous prime is 3649521373. The next prime is 3649521383. The reversal of 3649521382 is 2831259463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649521383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1322832 + ... + 1325587.

It is an arithmetic number, because the mean of its divisors is an integer number (375413535).

Almost surely, 2^3649521382 is an apocalyptic number.

3649521382 is a deficient number, since it is larger than the sum of its proper divisors (2357095178).

3649521382 is a wasteful number, since it uses less digits than its factorization.

3649521382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648487.

The product of its digits is 311040, while the sum is 43.

The square root of 3649521382 is about 60411.2686673604. The cubic root of 3649521382 is about 1539.6144227811.

The spelling of 3649521382 in words is "three billion, six hundred forty-nine million, five hundred twenty-one thousand, three hundred eighty-two".