4128386 has 16 divisors (see below), whose sum is σ = 6500736. Its totient is φ = 1964016.

The previous prime is 4128379. The next prime is 4128391. The reversal of 4128386 is 6838214.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885 + ... + 4071.

It is an arithmetic number, because the mean of its divisors is an integer number (406296).

Almost surely, 2^4128386 is an apocalyptic number.

4128386 is a deficient number, since it is larger than the sum of its proper divisors (2372350).

4128386 is a wasteful number, since it uses less digits than its factorization.

4128386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273.

The product of its digits is 9216, while the sum is 32.

The square root of 4128386 is about 2031.8430057463. The cubic root of 4128386 is about 160.4205861601.

The spelling of 4128386 in words is "four million, one hundred twenty-eight thousand, three hundred eighty-six".