4145668 has 12 divisors (see below), whose sum is σ = 7293132. Its totient is φ = 2061920.

The previous prime is 4145653. The next prime is 4145677. The reversal of 4145668 is 8665414.

It can be written as a sum of positive squares in 2 ways, for example, as 3694084 + 451584 = 1922^2 + 672^2 .

It is a congruent number.

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, 1843 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (607761).

Almost surely, 2^4145668 is an apocalyptic number.

It is an amenable number.

4145668 is a deficient number, since it is larger than the sum of its proper divisors (3147464).

4145668 is a wasteful number, since it uses less digits than its factorization.

4145668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462 (or 5460 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 4145668 is about 2036.0913535497. The cubic root of 4145668 is about 160.6441221866.

The spelling of 4145668 in words is "four million, one hundred forty-five thousand, six hundred sixty-eight".