3665444530 has 96 divisors (see below), whose sum is σ = 7428198960. Its totient is φ = 1300992000.

The previous prime is 3665444521. The next prime is 3665444539. The reversal of 3665444530 is 354445663.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3665444521) and next prime (3665444539).

It can be written as a sum of positive squares in 8 ways, for example, as 1600560049 + 2064884481 = 40007^2 + 45441^2 .

It is not an unprimeable number, because it can be changed into a prime (3665444539) 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 47 ways as a sum of consecutive naturals, for example, 10876522 + ... + 10876858.

Almost surely, 2^3665444530 is an apocalyptic number.

3665444530 is an abundant number, since it is smaller than the sum of its proper divisors (3762754430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3665444530 is a wasteful number, since it uses less digits than its factorization.

3665444530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

The square root of 3665444530 is about 60542.9147795182. The cubic root of 3665444530 is about 1541.8503269418.

The spelling of 3665444530 in words is "three billion, six hundred sixty-five million, four hundred forty-four thousand, five hundred thirty".