2440121440 has 24 divisors (see below), whose sum is σ = 5764787280. Its totient is φ = 976048512.

The previous prime is 2440121429. The next prime is 2440121447. The reversal of 2440121440 is 441210442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440121447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7625220 + ... + 7625539.

It is an arithmetic number, because the mean of its divisors is an integer number (240199470).

Almost surely, 2^2440121440 is an apocalyptic number.

2440121440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440121440 is an abundant number, since it is smaller than the sum of its proper divisors (3324665840).

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

2440121440 is a wasteful number, since it uses less digits than its factorization.

2440121440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15250774 (or 15250766 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2440121440 is about 49397.5853660885. The cubic root of 2440121440 is about 1346.2854338081.

Adding to 2440121440 its reverse (441210442), we get a palindrome (2881331882).

The spelling of 2440121440 in words is "two billion, four hundred forty million, one hundred twenty-one thousand, four hundred forty".