2404140 has 48 divisors (see below), whose sum is σ = 7130592. Its totient is φ = 603136.

The previous prime is 2404139. The next prime is 2404147. The reversal of 2404140 is 414042.

2404140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2404147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159 + ... + 2198.

It is an arithmetic number, because the mean of its divisors is an integer number (148554).

2^2404140 is an apocalyptic number.

2404140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2404140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3565296).

2404140 is an abundant number, since it is smaller than the sum of its proper divisors (4726452).

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

2404140 is a wasteful number, since it uses less digits than its factorization.

2404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2404140 is about 1550.5289420066. The cubic root of 2404140 is about 133.9635305818.

Adding to 2404140 its reverse (414042), we get a palindrome (2818182).

The spelling of 2404140 in words is "two million, four hundred four thousand, one hundred forty".