820302 has 16 divisors (see below), whose sum is σ = 1875072. Its totient is φ = 234360.

The previous prime is 820279. The next prime is 820319. The reversal of 820302 is 203028.

820302 is nontrivially palindromic in base 5.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

820302 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9724 + ... + 9807.

It is an arithmetic number, because the mean of its divisors is an integer number (117192).

2⁸²⁰³⁰² is an apocalyptic number.

820302 is an abundant number, since it is smaller than the sum of its proper divisors (1054770).

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

820302 is a wasteful number, since it uses less digits than its factorization.

820302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19543.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 820302 is about 905.7052500676. The cubic root of 820302 is about 93.6105054320.

The spelling of 820302 in words is "eight hundred twenty thousand, three hundred two".