1020266 has 8 divisors (see below), whose sum is σ = 1648164. Its totient is φ = 470880.

The previous prime is 1020259. The next prime is 1020269. The reversal of 1020266 is 6620201.

It can be written as a sum of positive squares in 2 ways, for example, as 912025 + 108241 = 955^2 + 329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1020269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19595 + ... + 19646.

2^1020266 is an apocalyptic number.

1020266 is a deficient number, since it is larger than the sum of its proper divisors (627898).

1020266 is a wasteful number, since it uses less digits than its factorization.

1020266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39256.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1020266 is about 1010.0821748749. The cubic root of 1020266 is about 100.6710205759.

Adding to 1020266 its reverse (6620201), we get a palindrome (7640467).

The spelling of 1020266 in words is "one million, twenty thousand, two hundred sixty-six".