4013866 has 8 divisors (see below), whose sum is σ = 6030144. Its totient is φ = 2003820.

The previous prime is 4013857. The next prime is 4013881. The reversal of 4013866 is 6683104.

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

It is a super-2 number, since 2×4013866² = 32222240531912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721 + ... + 2923.

It is an arithmetic number, because the mean of its divisors is an integer number (753768).

Almost surely, 2^4013866 is an apocalyptic number.

4013866 is a deficient number, since it is larger than the sum of its proper divisors (2016278).

4013866 is a wasteful number, since it uses less digits than its factorization.

4013866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4013866 is about 2003.4635010401. The cubic root of 4013866 is about 158.9233178490.

It can be divided in two parts, 40138 and 66, that added together give a palindrome (40204).

The spelling of 4013866 in words is "four million, thirteen thousand, eight hundred sixty-six".