2444013440 has 64 divisors (see below), whose sum is σ = 6373894320. Its totient is φ = 888729600.

The previous prime is 2444013431. The next prime is 2444013457. The reversal of 2444013440 is 443104442.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 166541 + ... + 180620.

Almost surely, 2^2444013440 is an apocalyptic number.

2444013440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2444013440 is an abundant number, since it is smaller than the sum of its proper divisors (3929880880).

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

2444013440 is a wasteful number, since it uses less digits than its factorization.

2444013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347191 (or 347179 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 2444013440 is about 49436.9643080964. The cubic root of 2444013440 is about 1347.0008298381. Note that the first 3 decimals are identical.

Adding to 2444013440 its reverse (443104442), we get a palindrome (2887117882).

The spelling of 2444013440 in words is "two billion, four hundred forty-four million, thirteen thousand, four hundred forty".