4012688 has 10 divisors (see below), whose sum is σ = 7774614. Its totient is φ = 2006336.

The previous prime is 4012681. The next prime is 4012703. The reversal of 4012688 is 8862104.

4012688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 123904 = 1972^2 + 352^2 .

It is a super-2 number, since 2×4012688² = 32203329970688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4012688.

It is not an unprimeable number, because it can be changed into a prime (4012681) by changing a digit.

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 as a sum of consecutive naturals, namely, 125381 + ... + 125412.

Almost surely, 2^4012688 is an apocalyptic number.

It is an amenable number.

4012688 is a deficient number, since it is larger than the sum of its proper divisors (3761926).

4012688 is a wasteful number, since it uses less digits than its factorization.

4012688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250801 (or 250795 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 4012688 is about 2003.1694885855. The cubic root of 4012688 is about 158.9077692494.

The spelling of 4012688 in words is "four million, twelve thousand, six hundred eighty-eight".