1378996960 has 96 divisors (see below), whose sum is σ = 3589028352. Its totient is φ = 496519680.

The previous prime is 1378996921. The next prime is 1378996961. The reversal of 1378996960 is 696998731.

It is a junction number, because it is equal to n+sod(n) for n = 1378996895 and 1378996904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378996961) 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, 177477 + ... + 185083.

It is an arithmetic number, because the mean of its divisors is an integer number (37385712).

Almost surely, 2^1378996960 is an apocalyptic number.

1378996960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378996960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794514176).

1378996960 is an abundant number, since it is smaller than the sum of its proper divisors (2210031392).

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

1378996960 is a wasteful number, since it uses less digits than its factorization.

1378996960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736 (or 7728 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 1378996960 is about 37134.8483233741. The cubic root of 1378996960 is about 1113.0664768126.

The spelling of 1378996960 in words is "one billion, three hundred seventy-eight million, nine hundred ninety-six thousand, nine hundred sixty".