3858918 has 32 divisors (see below), whose sum is σ = 8897280. Its totient is φ = 1092960.

The previous prime is 3858901. The next prime is 3858923. The reversal of 3858918 is 8198583.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3858918.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5508 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (278040).

Almost surely, 2^3858918 is an apocalyptic number.

3858918 is an abundant number, since it is smaller than the sum of its proper divisors (5038362).

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

3858918 is a wasteful number, since it uses less digits than its factorization.

3858918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812.

The product of its digits is 69120, while the sum is 42.

The square root of 3858918 is about 1964.4128893896. The cubic root of 3858918 is about 156.8514423655.

The spelling of 3858918 in words is "three million, eight hundred fifty-eight thousand, nine hundred eighteen".