802520 has 16 divisors (see below), whose sum is σ = 1805760. Its totient is φ = 320992.

The previous prime is 802511. The next prime is 802523. The reversal of 802520 is 25208.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802523) by changing a digit.

802520 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9992 + ... + 10071.

It is an arithmetic number, because the mean of its divisors is an integer number (112860).

2⁸⁰²⁵²⁰ is an apocalyptic number.

It is an amenable number.

802520 is an abundant number, since it is smaller than the sum of its proper divisors (1003240).

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

802520 is a wasteful number, since it uses less digits than its factorization.

802520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20074 (or 20070 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 802520 is about 895.8348062003. The cubic root of 802520 is about 92.9291478695.

Adding to 802520 its reverse (25208), we get a palindrome (827728).

The spelling of 802520 in words is "eight hundred two thousand, five hundred twenty".