3840213 has 8 divisors (see below), whose sum is σ = 5514208. Its totient is φ = 2363184.

The previous prime is 3840211. The next prime is 3840227. The reversal of 3840213 is 3120483.

It is a happy number.

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

It is not a de Polignac number, because 3840213 - 2¹ = 3840211 is a prime.

It is a Duffinian number.

3840213 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3840213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49195 + ... + 49272.

It is an arithmetic number, because the mean of its divisors is an integer number (689276).

Almost surely, 2^3840213 is an apocalyptic number.

It is an amenable number.

3840213 is a deficient number, since it is larger than the sum of its proper divisors (1673995).

3840213 is a wasteful number, since it uses less digits than its factorization.

3840213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98483.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3840213 is about 1959.6461415266. The cubic root of 3840213 is about 156.5976009641.

Adding to 3840213 its reverse (3120483), we get a palindrome (6960696).

The spelling of 3840213 in words is "three million, eight hundred forty thousand, two hundred thirteen".