3860028 has 48 divisors (see below), whose sum is σ = 10133760. Its totient is φ = 1270512.

The previous prime is 3860023. The next prime is 3860029. The reversal of 3860028 is 8200683.

3860028 is a `hidden beast` number, since 38 + 600 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3859983 and 3860010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3860023) 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 15 ways as a sum of consecutive naturals, for example, 10951 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (211120).

Almost surely, 2^3860028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3860028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5066880).

3860028 is an abundant number, since it is smaller than the sum of its proper divisors (6273732).

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

3860028 is a wasteful number, since it uses less digits than its factorization.

3860028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 3860028 is about 1964.6953962383. The cubic root of 3860028 is about 156.8664801223.

The spelling of 3860028 in words is "three million, eight hundred sixty thousand, twenty-eight".