2409804 has 48 divisors (see below), whose sum is σ = 6380640. Its totient is φ = 786240.

The previous prime is 2409791. The next prime is 2409817. The reversal of 2409804 is 4089042.

It is an interprime number because it is at equal distance from previous prime (2409791) and next prime (2409817).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5514 + ... + 5934.

It is an arithmetic number, because the mean of its divisors is an integer number (132930).

2^2409804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2409804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3190320).

2409804 is an abundant number, since it is smaller than the sum of its proper divisors (3970836).

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

2409804 is a wasteful number, since it uses less digits than its factorization.

2409804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2409804 is about 1552.3543409931. The cubic root of 2409804 is about 134.0686512411.

The spelling of 2409804 in words is "two million, four hundred nine thousand, eight hundred four".