548643456 has 192 divisors, whose sum is σ = 1693036800. Its totient is φ = 176670720.

The previous prime is 548643451. The next prime is 548643457. The reversal of 548643456 is 654346845.

548643456 is a `hidden beast` number, since 548 + 64 + 3 + 45 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (548643451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 963940 + ... + 964508.

It is an arithmetic number, because the mean of its divisors is an integer number (8817900).

Almost surely, 2^548643456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 548643456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846518400).

548643456 is an abundant number, since it is smaller than the sum of its proper divisors (1144393344).

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

548643456 is an equidigital number, since it uses as much as digits as its factorization.

548643456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 605 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 548643456 is about 23423.1393284504. The cubic root of 548643456 is about 818.6471127944.

The spelling of 548643456 in words is "five hundred forty-eight million, six hundred forty-three thousand, four hundred fifty-six".