4128286 has 4 divisors (see below), whose sum is σ = 6192432. Its totient is φ = 2064142.

The previous prime is 4128283. The next prime is 4128287. The reversal of 4128286 is 6828214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6828214 = 2 ⋅3414107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032070 + ... + 1032073.

It is an arithmetic number, because the mean of its divisors is an integer number (1548108).

Almost surely, 2^4128286 is an apocalyptic number.

4128286 is a deficient number, since it is larger than the sum of its proper divisors (2064146).

4128286 is a wasteful number, since it uses less digits than its factorization.

4128286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064145.

The product of its digits is 6144, while the sum is 31.

The square root of 4128286 is about 2031.8183973968. The cubic root of 4128286 is about 160.4192908849.

The spelling of 4128286 in words is "four million, one hundred twenty-eight thousand, two hundred eighty-six".