1378228712 has 64 divisors (see below), whose sum is σ = 3098476800. Its totient is φ = 562222080.

The previous prime is 1378228711. The next prime is 1378228717. The reversal of 1378228712 is 2178228731.

It is a self number, because there is not a number n which added to its sum of digits gives 1378228712.

It is not an unprimeable number, because it can be changed into a prime (1378228711) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 109328 + ... + 121280.

It is an arithmetic number, because the mean of its divisors is an integer number (48413700).

Almost surely, 2^1378228712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378228712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1549238400).

1378228712 is an abundant number, since it is smaller than the sum of its proper divisors (1720248088).

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

1378228712 is a wasteful number, since it uses less digits than its factorization.

1378228712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12066 (or 12062 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 1378228712 is about 37124.5028518902. The cubic root of 1378228712 is about 1112.8597396057.

The spelling of 1378228712 in words is "one billion, three hundred seventy-eight million, two hundred twenty-eight thousand, seven hundred twelve".