2409240 has 64 divisors (see below), whose sum is σ = 7659360. Its totient is φ = 604160.

The previous prime is 2409229. The next prime is 2409259. The reversal of 2409240 is 429042.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450 + ... + 2630.

2^2409240 is an apocalyptic number.

2409240 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 2409240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3829680).

2409240 is an abundant number, since it is smaller than the sum of its proper divisors (5250120).

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

2409240 is a wasteful number, since it uses less digits than its factorization.

2409240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2409240 is about 1552.1726708070. The cubic root of 2409240 is about 134.0581911069.

The spelling of 2409240 in words is "two million, four hundred nine thousand, two hundred forty".