1378363968 has 336 divisors, whose sum is σ = 4445812800. Its totient is φ = 406425600.

The previous prime is 1378363937. The next prime is 1378364021. The reversal of 1378363968 is 8693638731.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13647118 + ... + 13647218.

Almost surely, 2^1378363968 is an apocalyptic number.

1378363968 is a gapful number since it is divisible by the number (18) 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 1378363968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2222906400).

1378363968 is an abundant number, since it is smaller than the sum of its proper divisors (3067448832).

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

1378363968 is a wasteful number, since it uses less digits than its factorization.

1378363968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 197 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1378363968 is about 37126.3244612229. The cubic root of 1378363968 is about 1112.8961428605.

The spelling of 1378363968 in words is "one billion, three hundred seventy-eight million, three hundred sixty-three thousand, nine hundred sixty-eight".