4081312 has 12 divisors (see below), whose sum is σ = 8035146. Its totient is φ = 2040640.

The previous prime is 4081307. The next prime is 4081331. The reversal of 4081312 is 2131804.

It can be written as a sum of positive squares in only one way, i.e., 2835856 + 1245456 = 1684^2 + 1116^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4081312.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63739 + ... + 63802.

Almost surely, 2^4081312 is an apocalyptic number.

It is an amenable number.

4081312 is a deficient number, since it is larger than the sum of its proper divisors (3953834).

4081312 is a wasteful number, since it uses less digits than its factorization.

4081312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127551 (or 127543 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4081312 is about 2020.2257299619. The cubic root of 4081312 is about 159.8085209400.

The spelling of 4081312 in words is "four million, eighty-one thousand, three hundred twelve".