3928266 has 24 divisors (see below), whose sum is σ = 8557380. Its totient is φ = 1302336.

The previous prime is 3928261. The next prime is 3928273. The reversal of 3928266 is 6628293.

3928266 is a `hidden beast` number, since 392 + 8 + 266 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3744225 + 184041 = 1935^2 + 429^2 .

It is a d-powerful number, because it can be written as 3⁹ + 9³ + 2¹⁷ + 8 + 2²¹ + 6 + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3928266.

It is not an unprimeable number, because it can be changed into a prime (3928261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3646 + ... + 4598.

Almost surely, 2^3928266 is an apocalyptic number.

3928266 is an abundant number, since it is smaller than the sum of its proper divisors (4629114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3928266 is a wasteful number, since it uses less digits than its factorization.

3928266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1187 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 3928266 is about 1981.9853682608. The cubic root of 3928266 is about 157.7854536076.

The spelling of 3928266 in words is "three million, nine hundred twenty-eight thousand, two hundred sixty-six".