3666435844 has 12 divisors (see below), whose sum is σ = 6623239168. Its totient is φ = 1774081800.

The previous prime is 3666435823. The next prime is 3666435847. The reversal of 3666435844 is 4485346663.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3666435847) 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, 14783892 + ... + 14784139.

Almost surely, 2^3666435844 is an apocalyptic number.

It is an amenable number.

3666435844 is a deficient number, since it is larger than the sum of its proper divisors (2956803324).

3666435844 is a wasteful number, since it uses less digits than its factorization.

3666435844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29568066 (or 29568064 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 49.

The square root of 3666435844 is about 60551.1010965119. The cubic root of 3666435844 is about 1541.9893114528.

The spelling of 3666435844 in words is "three billion, six hundred sixty-six million, four hundred thirty-five thousand, eight hundred forty-four".