4028266 has 32 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 1655280.

The previous prime is 4028261. The next prime is 4028267. The reversal of 4028266 is 6628204.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4028261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9405 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^4028266 is an apocalyptic number.

4028266 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4028266 is a deficient number, since it is larger than the sum of its proper divisors (3229334).

4028266 is a wasteful number, since it uses less digits than its factorization.

4028266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 4028266 is about 2007.0540600592. The cubic root of 4028266 is about 159.1131402056.

It can be divided in two parts, 402 and 8266, that added together give a palindrome (8668).

The spelling of 4028266 in words is "four million, twenty-eight thousand, two hundred sixty-six".