3665042 has 8 divisors (see below), whose sum is σ = 5546556. Its totient is φ = 1816192.

The previous prime is 3665041. The next prime is 3665087. The reversal of 3665042 is 2405663.

It can be written as a sum of positive squares in 2 ways, for example, as 3568321 + 96721 = 1889^2 + 311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3665041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7883 + ... + 8334.

Almost surely, 2^3665042 is an apocalyptic number.

3665042 is a deficient number, since it is larger than the sum of its proper divisors (1881514).

3665042 is a wasteful number, since it uses less digits than its factorization.

3665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16332.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3665042 is about 1914.4299412619. The cubic root of 3665042 is about 154.1793884153.

The spelling of 3665042 in words is "three million, six hundred sixty-five thousand, forty-two".