2440004 has 36 divisors (see below), whose sum is σ = 5075280. Its totient is φ = 1023120.

The previous prime is 2440003. The next prime is 2440007. The reversal of 2440004 is 4000442.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (2440003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11459 + ... + 11669.

It is an arithmetic number, because the mean of its divisors is an integer number (140980).

2^2440004 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 2440004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2537640).

2440004 is an abundant number, since it is smaller than the sum of its proper divisors (2635276).

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

2440004 is a wasteful number, since it uses less digits than its factorization.

2440004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2440004 is about 1562.0512155496. The cubic root of 2440004 is about 134.6263835116.

Adding to 2440004 its reverse (4000442), we get a palindrome (6440446).

The spelling of 2440004 in words is "two million, four hundred forty thousand, four".