3665024440 has 128 divisors (see below), whose sum is σ = 10532229120. Its totient is φ = 1114444800.

The previous prime is 3665024431. The next prime is 3665024459. The reversal of 3665024440 is 444205663.

It is a junction number, because it is equal to n+sod(n) for n = 3665024396 and 3665024405.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 111769 + ... + 140791.

It is an arithmetic number, because the mean of its divisors is an integer number (82283040).

Almost surely, 2^3665024440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3665024440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266114560).

3665024440 is an abundant number, since it is smaller than the sum of its proper divisors (6867204680).

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

3665024440 is a wasteful number, since it uses less digits than its factorization.

3665024440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29093 (or 29089 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 3665024440 is about 60539.4453228637. The cubic root of 3665024440 is about 1541.7914217945.

The spelling of 3665024440 in words is "three billion, six hundred sixty-five million, twenty-four thousand, four hundred forty".