1278571248 has 60 divisors (see below), whose sum is σ = 3611708568. Its totient is φ = 422202240.

The previous prime is 1278571201. The next prime is 1278571267. The reversal of 1278571248 is 8421758721.

1278571248 is a `hidden beast` number, since 1 + 2 + 78 + 571 + 2 + 4 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26083 + ... + 56898.

Almost surely, 2^1278571248 is an apocalyptic number.

1278571248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1278571248 is an abundant number, since it is smaller than the sum of its proper divisors (2333137320).

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

1278571248 is a wasteful number, since it uses less digits than its factorization.

1278571248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83102 (or 83093 counting only the distinct ones).

The product of its digits is 250880, while the sum is 45.

The square root of 1278571248 is about 35757.1146486961. The cubic root of 1278571248 is about 1085.3629139848.

The spelling of 1278571248 in words is "one billion, two hundred seventy-eight million, five hundred seventy-one thousand, two hundred forty-eight".