866478448 has 40 divisors (see below), whose sum is σ = 1911056256. Its totient is φ = 376728000.

The previous prime is 866478433. The next prime is 866478449. The reversal of 866478448 is 844874668.

866478448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866478449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102978 + ... + 111073.

Almost surely, 2^866478448 is an apocalyptic number.

866478448 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

866478448 is an abundant number, since it is smaller than the sum of its proper divisors (1044577808).

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

866478448 is a wasteful number, since it uses less digits than its factorization.

866478448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214093 (or 214087 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 55.

The square root of 866478448 is about 29436.0059790726. The cubic root of 866478448 is about 953.3504772483.

The spelling of 866478448 in words is "eight hundred sixty-six million, four hundred seventy-eight thousand, four hundred forty-eight".