4001886 has 40 divisors (see below), whose sum is σ = 10251120. Its totient is φ = 1143072.

The previous prime is 4001873. The next prime is 4001891. The reversal of 4001886 is 6881004.

4001886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 631 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (256278).

Almost surely, 2^4001886 is an apocalyptic number.

4001886 is an abundant number, since it is smaller than the sum of its proper divisors (6249234).

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

4001886 is a wasteful number, since it uses less digits than its factorization.

4001886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 4001886 is about 2000.4714444350. The cubic root of 4001886 is about 158.7650499300.

It can be divided in two parts, 40018 and 86, that added together give a palindrome (40104).

The spelling of 4001886 in words is "four million, one thousand, eight hundred eighty-six".