278058960 has 320 divisors, whose sum is σ = 1039219200. Its totient is φ = 68124672.

The previous prime is 278058947. The next prime is 278058973. The reversal of 278058960 is 69850872.

278058960 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 589 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (278058947) and next prime (278058973).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1440624 + ... + 1440816.

It is an arithmetic number, because the mean of its divisors is an integer number (3247560).

Almost surely, 2^278058960 is an apocalyptic number.

278058960 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 278058960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519609600).

278058960 is an abundant number, since it is smaller than the sum of its proper divisors (761160240).

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

278058960 is a wasteful number, since it uses less digits than its factorization.

278058960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 278058960 is about 16675.0999997002. The cubic root of 278058960 is about 652.6980241877.

The spelling of 278058960 in words is "two hundred seventy-eight million, fifty-eight thousand, nine hundred sixty".