2440312240 has 40 divisors (see below), whose sum is σ = 5683908528. Its totient is φ = 974373120.

The previous prime is 2440312229. The next prime is 2440312241. The reversal of 2440312240 is 422130442.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2440312241) 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, 17950 + ... + 72130.

Almost surely, 2^2440312240 is an apocalyptic number.

2440312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440312240 is an abundant number, since it is smaller than the sum of its proper divisors (3243596288).

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

2440312240 is a wasteful number, since it uses less digits than its factorization.

2440312240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54757 (or 54751 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2440312240 is about 49399.5165968251. The cubic root of 2440312240 is about 1346.3205228493.

Adding to 2440312240 its reverse (422130442), we get a palindrome (2862442682).

The spelling of 2440312240 in words is "two billion, four hundred forty million, three hundred twelve thousand, two hundred forty".