2447445660 has 384 divisors, whose sum is σ = 8207474688. Its totient is φ = 539136000.

The previous prime is 2447445653. The next prime is 2447445667. The reversal of 2447445660 is 665447442.

It is an interprime number because it is at equal distance from previous prime (2447445653) and next prime (2447445667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447445667) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 40122030 + ... + 40122090.

It is an arithmetic number, because the mean of its divisors is an integer number (21373632).

Almost surely, 2^2447445660 is an apocalyptic number.

2447445660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2447445660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4103737344).

2447445660 is an abundant number, since it is smaller than the sum of its proper divisors (5760029028).

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

2447445660 is a wasteful number, since it uses less digits than its factorization.

2447445660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The square root of 2447445660 is about 49471.6652236409. The cubic root of 2447445660 is about 1347.6310828774.

The spelling of 2447445660 in words is "two billion, four hundred forty-seven million, four hundred forty-five thousand, six hundred sixty".