2828840 has 32 divisors (see below), whose sum is σ = 7274880. Its totient is φ = 969792.

The previous prime is 2828809. The next prime is 2828857. The reversal of 2828840 is 488282.

It is a junction number, because it is equal to n+sod(n) for n = 2828797 and 2828806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4772 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (227340).

2^2828840 is an apocalyptic number.

2828840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2828840 is an abundant number, since it is smaller than the sum of its proper divisors (4446040).

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

2828840 is a wasteful number, since it uses less digits than its factorization.

2828840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10121 (or 10117 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 2828840 is about 1681.9155745756. The cubic root of 2828840 is about 141.4282371567.

The spelling of 2828840 in words is "two million, eight hundred twenty-eight thousand, eight hundred forty".