2344640 has 56 divisors (see below), whose sum is σ = 5925312. Its totient is φ = 880640.

The previous prime is 2344631. The next prime is 2344649. The reversal of 2344640 is 464432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2344631) and next prime (2344649).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2344649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225 + ... + 5655.

2^2344640 is an apocalyptic number.

2344640 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 2344640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2962656).

2344640 is an abundant number, since it is smaller than the sum of its proper divisors (3580672).

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

2344640 is a wasteful number, since it uses less digits than its factorization.

2344640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2344640 is about 1531.2217344330. The cubic root of 2344640 is about 132.8491326401.

The spelling of 2344640 in words is "two million, three hundred forty-four thousand, six hundred forty".