2404008 has 48 divisors (see below), whose sum is σ = 6582420. Its totient is φ = 792576.

The previous prime is 2403977. The next prime is 2404009. The reversal of 2404008 is 8004042.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 26244 = 1542^2 + 162^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2404009) 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, 12360 + ... + 12552.

2^2404008 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 2404008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3291210).

2404008 is an abundant number, since it is smaller than the sum of its proper divisors (4178412).

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

2404008 is a wasteful number, since it uses less digits than its factorization.

2404008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2404008 is about 1550.4863753029. The cubic root of 2404008 is about 133.9610787682.

The spelling of 2404008 in words is "two million, four hundred four thousand, eight".