2444495640 has 64 divisors (see below), whose sum is σ = 7336742400. Its totient is φ = 651576192.

The previous prime is 2444495633. The next prime is 2444495653. The reversal of 2444495640 is 465944442.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2444495592 and 2444495601.

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, 508689 + ... + 513471.

It is an arithmetic number, because the mean of its divisors is an integer number (114636600).

Almost surely, 2^2444495640 is an apocalyptic number.

2444495640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2444495640 is an abundant number, since it is smaller than the sum of its proper divisors (4892246760).

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

2444495640 is a wasteful number, since it uses less digits than its factorization.

2444495640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9056 (or 9052 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The square root of 2444495640 is about 49441.8409851413. The cubic root of 2444495640 is about 1347.0894110597.

The spelling of 2444495640 in words is "two billion, four hundred forty-four million, four hundred ninety-five thousand, six hundred forty".