1278042060 has 48 divisors (see below), whose sum is σ = 3590076672. Its totient is φ = 339710400.

The previous prime is 1278041971. The next prime is 1278042061. The reversal of 1278042060 is 602408721.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1278042061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15586 + ... + 52905.

It is an arithmetic number, because the mean of its divisors is an integer number (74793264).

Almost surely, 2^1278042060 is an apocalyptic number.

1278042060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1278042060 is an abundant number, since it is smaller than the sum of its proper divisors (2312034612).

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

1278042060 is a wasteful number, since it uses less digits than its factorization.

1278042060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68814 (or 68812 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1278042060 is about 35749.7141247311. The cubic root of 1278042060 is about 1085.2131529945.

The spelling of 1278042060 in words is "one billion, two hundred seventy-eight million, forty-two thousand, sixty".