3666038 has 4 divisors (see below), whose sum is σ = 5499060. Its totient is φ = 1833018.

The previous prime is 3666037. The next prime is 3666041. The reversal of 3666038 is 8306663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8306663 = 431 ⋅19273.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3665995 and 3666013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916508 + ... + 916511.

It is an arithmetic number, because the mean of its divisors is an integer number (1374765).

Almost surely, 2^3666038 is an apocalyptic number.

3666038 is a deficient number, since it is larger than the sum of its proper divisors (1833022).

3666038 is a wasteful number, since it uses less digits than its factorization.

3666038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833021.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 3666038 is about 1914.6900532462. The cubic root of 3666038 is about 154.1933535816.

The spelling of 3666038 in words is "three million, six hundred sixty-six thousand, thirty-eight".