278132448 has 48 divisors (see below), whose sum is σ = 796473216. Its totient is φ = 84282240.

The previous prime is 278132447. The next prime is 278132453. The reversal of 278132448 is 844231872.

278132448 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278132447) 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, 130636 + ... + 132747.

It is an arithmetic number, because the mean of its divisors is an integer number (16593192).

Almost surely, 2^278132448 is an apocalyptic number.

It is an amenable number.

278132448 is an abundant number, since it is smaller than the sum of its proper divisors (518340768).

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

278132448 is a wasteful number, since it uses less digits than its factorization.

278132448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263407 (or 263399 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 278132448 is about 16677.3033791438. The cubic root of 278132448 is about 652.7555194846.

The spelling of 278132448 in words is "two hundred seventy-eight million, one hundred thirty-two thousand, four hundred forty-eight".