3655381844 has 12 divisors (see below), whose sum is σ = 6401330964. Its totient is φ = 1826430144.

The previous prime is 3655381843. The next prime is 3655381889. The reversal of 3655381844 is 4481835563.

3655381844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2742616900 + 912764944 = 52370^2 + 30212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655381843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308657 + ... + 320280.

It is an arithmetic number, because the mean of its divisors is an integer number (533444247).

Almost surely, 2^3655381844 is an apocalyptic number.

It is an amenable number.

3655381844 is a deficient number, since it is larger than the sum of its proper divisors (2745949120).

3655381844 is a wasteful number, since it uses less digits than its factorization.

3655381844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630394 (or 630392 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The square root of 3655381844 is about 60459.7539194463. The cubic root of 3655381844 is about 1540.4380948463.

The spelling of 3655381844 in words is "three billion, six hundred fifty-five million, three hundred eighty-one thousand, eight hundred forty-four".