1378189316 has 24 divisors (see below), whose sum is σ = 2808388800. Its totient is φ = 579507552.

The previous prime is 1378189271. The next prime is 1378189321. The reversal of 1378189316 is 6139818731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462866 + ... + 465833.

It is an arithmetic number, because the mean of its divisors is an integer number (117016200).

Almost surely, 2^1378189316 is an apocalyptic number.

It is an amenable number.

1378189316 is an abundant number, since it is smaller than the sum of its proper divisors (1430199484).

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

1378189316 is a wasteful number, since it uses less digits than its factorization.

1378189316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928763 (or 928761 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 1378189316 is about 37123.9722551346. The cubic root of 1378189316 is about 1112.8491359858.

The spelling of 1378189316 in words is "one billion, three hundred seventy-eight million, one hundred eighty-nine thousand, three hundred sixteen".