2444252440 has 64 divisors (see below), whose sum is σ = 6431420160. Its totient is φ = 818536320.

The previous prime is 2444252431. The next prime is 2444252453. The reversal of 2444252440 is 442524442.

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, 89466 + ... + 113545.

It is an arithmetic number, because the mean of its divisors is an integer number (100490940).

Almost surely, 2^2444252440 is an apocalyptic number.

2444252440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2444252440 is an abundant number, since it is smaller than the sum of its proper divisors (3987167720).

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

2444252440 is a wasteful number, since it uses less digits than its factorization.

2444252440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203072 (or 203068 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 31.

The square root of 2444252440 is about 49439.3814686228. The cubic root of 2444252440 is about 1347.0447361303.

Adding to 2444252440 its reverse (442524442), we get a palindrome (2886776882).

The spelling of 2444252440 in words is "two billion, four hundred forty-four million, two hundred fifty-two thousand, four hundred forty".