2402240 has 28 divisors (see below), whose sum is σ = 5721096. Its totient is φ = 960768.

The previous prime is 2402233. The next prime is 2402249. The reversal of 2402240 is 422042.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402249) 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, 3434 + ... + 4073.

2^2402240 is an apocalyptic number.

2402240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2402240 is an abundant number, since it is smaller than the sum of its proper divisors (3318856).

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

2402240 is an equidigital number, since it uses as much as digits as its factorization.

2402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524 (or 7514 counting only the distinct ones).

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

The square root of 2402240 is about 1549.9161267630. The cubic root of 2402240 is about 133.9282306700.

Adding to 2402240 its reverse (422042), we get a palindrome (2824282).

The spelling of 2402240 in words is "two million, four hundred two thousand, two hundred forty".