3840237 has 8 divisors (see below), whose sum is σ = 5689280. Its totient is φ = 2560140.

The previous prime is 3840227. The next prime is 3840253. The reversal of 3840237 is 7320483.

It is not a de Polignac number, because 3840237 - 2⁶ = 3840173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 142231 = 3840237 / (3 + 8 + 4 + 0 + 2 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3840237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840227) 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 7 ways as a sum of consecutive naturals, for example, 71089 + ... + 71142.

It is an arithmetic number, because the mean of its divisors is an integer number (711160).

Almost surely, 2^3840237 is an apocalyptic number.

It is an amenable number.

3840237 is a deficient number, since it is larger than the sum of its proper divisors (1849043).

3840237 is a wasteful number, since it uses less digits than its factorization.

3840237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142240 (or 142234 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3840237 is about 1959.6522650715. The cubic root of 3840237 is about 156.5979271903.

The spelling of 3840237 in words is "three million, eight hundred forty thousand, two hundred thirty-seven".