2440340 has 24 divisors (see below), whose sum is σ = 5857152. Its totient is φ = 836640.

The previous prime is 2440331. The next prime is 2440363. The reversal of 2440340 is 430442.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8576 + ... + 8855.

It is an arithmetic number, because the mean of its divisors is an integer number (244048).

2^2440340 is an apocalyptic number.

2440340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440340 is an abundant number, since it is smaller than the sum of its proper divisors (3416812).

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

2440340 is a wasteful number, since it uses less digits than its factorization.

2440340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17447 (or 17445 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2440340 is about 1562.1587627383. The cubic root of 2440340 is about 134.6325627895.

Adding to 2440340 its reverse (430442), we get a palindrome (2870782).

The spelling of 2440340 in words is "two million, four hundred forty thousand, three hundred forty".