2478446656 has 105 divisors (see below), whose sum is σ = 5783053839. Its totient is φ = 1053827712.

The previous prime is 2478446639. The next prime is 2478446657. The reversal of 2478446656 is 6566448742.

The square root of 2478446656 is 49784.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×2478446656² = 12285395653275164672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478446657) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 19515265 + ... + 19515391.

Almost surely, 2^2478446656 is an apocalyptic number.

2478446656 is the 49784-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2478446656

2478446656 is an abundant number, since it is smaller than the sum of its proper divisors (3304607183).

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

2478446656 is an frugal number, since it uses more digits than its factorization.

2478446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 136 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 52.

The cubic root of 2478446656 is about 1353.2972272042.

The spelling of 2478446656 in words is "two billion, four hundred seventy-eight million, four hundred forty-six thousand, six hundred fifty-six".