828040 has 32 divisors (see below), whose sum is σ = 1889280. Its totient is φ = 326592.

The previous prime is 828029. The next prime is 828043. The reversal of 828040 is 40828.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (828043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4999 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (59040).

2⁸²⁸⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

828040 is an abundant number, since it is smaller than the sum of its proper divisors (1061240).

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

828040 is a wasteful number, since it uses less digits than its factorization.

828040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 828040 is about 909.9670323699. The cubic root of 828040 is about 93.9039308219.

Adding to 828040 its reverse (40828), we get a palindrome (868868).

The spelling of 828040 in words is "eight hundred twenty-eight thousand, forty".