820262 has 8 divisors (see below), whose sum is σ = 1242216. Its totient is φ = 406192.

The previous prime is 820247. The next prime is 820271. The reversal of 820262 is 262028.

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

It is a congruent number.

It is an unprimeable number.

820262 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (155277).

2⁸²⁰²⁶² is an apocalyptic number.

820262 is a deficient number, since it is larger than the sum of its proper divisors (421954).

820262 is a wasteful number, since it uses less digits than its factorization.

820262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 820262 is about 905.6831675592. The cubic root of 820262 is about 93.6089838456.

It can be divided in two parts, 82026 and 2, that added together give a palindrome (82028).

The spelling of 820262 in words is "eight hundred twenty thousand, two hundred sixty-two".