3656870444 has 12 divisors (see below), whose sum is σ = 6438785304. Its totient is φ = 1817217504.

The previous prime is 3656870423. The next prime is 3656870447. The reversal of 3656870444 is 4440786563.

It is not an unprimeable number, because it can be changed into a prime (3656870447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803697 + ... + 2805000.

It is an arithmetic number, because the mean of its divisors is an integer number (536565442).

Almost surely, 2^3656870444 is an apocalyptic number.

It is an amenable number.

3656870444 is a deficient number, since it is larger than the sum of its proper divisors (2781914860).

3656870444 is a wasteful number, since it uses less digits than its factorization.

3656870444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608864 (or 5608862 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The square root of 3656870444 is about 60472.0633350641. The cubic root of 3656870444 is about 1540.6471733175.

The spelling of 3656870444 in words is "three billion, six hundred fifty-six million, eight hundred seventy thousand, four hundred forty-four".