2404040 has 16 divisors (see below), whose sum is σ = 5409180. Its totient is φ = 961600.

The previous prime is 2404037. The next prime is 2404043. The reversal of 2404040 is 404042.

It is an interprime number because it is at equal distance from previous prime (2404037) and next prime (2404043).

It can be written as a sum of positive squares in 2 ways, for example, as 2390116 + 13924 = 1546^2 + 118^2 .

2404040 is a modest number, since divided by 4040 gives 240 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2404043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30011 + ... + 30090.

2^2404040 is an apocalyptic number.

2404040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2404040 is an abundant number, since it is smaller than the sum of its proper divisors (3005140).

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

2404040 is a wasteful number, since it uses less digits than its factorization.

2404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60112 (or 60108 counting only the distinct ones).

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

The square root of 2404040 is about 1550.4966946111. The cubic root of 2404040 is about 133.9616731555.

Adding to 2404040 its reverse (404042), we get a palindrome (2808082).

The spelling of 2404040 in words is "two million, four hundred four thousand, forty".