2440403340 has 24 divisors (see below), whose sum is σ = 6833129520. Its totient is φ = 650774208.

The previous prime is 2440403333. The next prime is 2440403347. The reversal of 2440403340 is 433040442.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2440403333) and next prime (2440403347).

It is a self number, because there is not a number n which added to its sum of digits gives 2440403340.

It is not an unprimeable number, because it can be changed into a prime (2440403347) 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, 20336635 + ... + 20336754.

It is an arithmetic number, because the mean of its divisors is an integer number (284713730).

Almost surely, 2^2440403340 is an apocalyptic number.

2440403340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440403340 is an abundant number, since it is smaller than the sum of its proper divisors (4392726180).

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

2440403340 is a wasteful number, since it uses less digits than its factorization.

2440403340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40673401 (or 40673399 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 2440403340 is about 49400.4386620200. The cubic root of 2440403340 is about 1346.3372759341.

Adding to 2440403340 its reverse (433040442), we get a palindrome (2873443782).

The spelling of 2440403340 in words is "two billion, four hundred forty million, four hundred three thousand, three hundred forty".