2828040 has 32 divisors (see below), whose sum is σ = 8484480. Its totient is φ = 754112.

The previous prime is 2827987. The next prime is 2828053. The reversal of 2828040 is 408282.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2828040.

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, 11664 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (265140).

2^2828040 is an apocalyptic number.

2828040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2828040 is an abundant number, since it is smaller than the sum of its proper divisors (5656440).

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

2828040 is a wasteful number, since it uses less digits than its factorization.

2828040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23581 (or 23577 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 2828040 is about 1681.6777336933. The cubic root of 2828040 is about 141.4149038638.

The spelling of 2828040 in words is "two million, eight hundred twenty-eight thousand, forty".