4013864 has 16 divisors (see below), whose sum is σ = 7922400. Its totient is φ = 1901232.

The previous prime is 4013857. The next prime is 4013881. The reversal of 4013864 is 4683104.

It is a super-2 number, since 2×4013864² = 32222208420992, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 13052 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (495150).

Almost surely, 2^4013864 is an apocalyptic number.

It is an amenable number.

4013864 is a deficient number, since it is larger than the sum of its proper divisors (3908536).

4013864 is a wasteful number, since it uses less digits than its factorization.

4013864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26432 (or 26428 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 4013864 is about 2003.4630019045. The cubic root of 4013864 is about 158.9232914532.

Adding to 4013864 its reverse (4683104), we get a palindrome (8696968).

The spelling of 4013864 in words is "four million, thirteen thousand, eight hundred sixty-four".