3812868 has 18 divisors (see below), whose sum is σ = 9638174. Its totient is φ = 1270944.

The previous prime is 3812843. The next prime is 3812899. The reversal of 3812868 is 8682183.

It can be written as a sum of positive squares in only one way, i.e., 3392964 + 419904 = 1842^2 + 648^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 105913 = 3812868 / (3 + 8 + 1 + 2 + 8 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52921 + ... + 52992.

Almost surely, 2^3812868 is an apocalyptic number.

It is an amenable number.

3812868 is an abundant number, since it is smaller than the sum of its proper divisors (5825306).

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

3812868 is a wasteful number, since it uses less digits than its factorization.

3812868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105923 (or 105918 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 3812868 is about 1952.6566518464. The cubic root of 3812868 is about 156.2250204334.

It can be divided in two parts, 381 and 2868, that added together give a square (3249 = 57²).

The spelling of 3812868 in words is "three million, eight hundred twelve thousand, eight hundred sixty-eight".