1278035960 has 16 divisors (see below), whose sum is σ = 2875581000. Its totient is φ = 511214368.

The previous prime is 1278035939. The next prime is 1278035971. The reversal of 1278035960 is 695308721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15975410 + ... + 15975489.

Almost surely, 2^1278035960 is an apocalyptic number.

1278035960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1278035960 is an abundant number, since it is smaller than the sum of its proper divisors (1597545040).

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

1278035960 is a wasteful number, since it uses less digits than its factorization.

1278035960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31950910 (or 31950906 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1278035960 is about 35749.6288092618. The cubic root of 1278035960 is about 1085.2114264445.

The spelling of 1278035960 in words is "one billion, two hundred seventy-eight million, thirty-five thousand, nine hundred sixty".