3644095838 has 16 divisors (see below), whose sum is σ = 5584244544. Its totient is φ = 1782706080.

The previous prime is 3644095837. The next prime is 3644095859. The reversal of 3644095838 is 8385904463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644095837) 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 7 ways as a sum of consecutive naturals, for example, 534008 + ... + 540788.

It is an arithmetic number, because the mean of its divisors is an integer number (349015284).

Almost surely, 2^3644095838 is an apocalyptic number.

3644095838 is a deficient number, since it is larger than the sum of its proper divisors (1940148706).

3644095838 is a wasteful number, since it uses less digits than its factorization.

3644095838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 3644095838 is about 60366.3468995764. The cubic root of 3644095838 is about 1538.8510908462.

The spelling of 3644095838 in words is "three billion, six hundred forty-four million, ninety-five thousand, eight hundred thirty-eight".