1378889008 has 120 divisors (see below), whose sum is σ = 3313930752. Its totient is φ = 552892032.

The previous prime is 1378888997. The next prime is 1378889051. The reversal of 1378889008 is 8009888731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 846691 + ... + 848317.

Almost surely, 2^1378889008 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 1378889008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1656965376).

1378889008 is an abundant number, since it is smaller than the sum of its proper divisors (1935041744).

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

1378889008 is a wasteful number, since it uses less digits than its factorization.

1378889008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 1378889008 is about 37133.3947815171. The cubic root of 1378889008 is about 1113.0374313321.

The spelling of 1378889008 in words is "one billion, three hundred seventy-eight million, eight hundred eighty-nine thousand, eight".