1278060258 has 16 divisors (see below), whose sum is σ = 2556493920. Its totient is φ = 425957856.

The previous prime is 1278060239. The next prime is 1278060293. The reversal of 1278060258 is 8520608721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50541 + ... + 71487.

It is an arithmetic number, because the mean of its divisors is an integer number (159780870).

Almost surely, 2^1278060258 is an apocalyptic number.

1278060258 is an abundant number, since it is smaller than the sum of its proper divisors (1278433662).

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

1278060258 is a wasteful number, since it uses less digits than its factorization.

1278060258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31121.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1278060258 is about 35749.9686433429. The cubic root of 1278060258 is about 1085.2183037419.

Adding to 1278060258 its reverse (8520608721), we get a palindrome (9798668979).

The spelling of 1278060258 in words is "one billion, two hundred seventy-eight million, sixty thousand, two hundred fifty-eight".