1378608330 has 64 divisors (see below), whose sum is σ = 3643273728. Its totient is φ = 331076160.

The previous prime is 1378608323. The next prime is 1378608377. The reversal of 1378608330 is 338068731.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15789 + ... + 54831.

It is an arithmetic number, because the mean of its divisors is an integer number (56926152).

Almost surely, 2^1378608330 is an apocalyptic number.

1378608330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378608330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821636864).

1378608330 is an abundant number, since it is smaller than the sum of its proper divisors (2264665398).

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

1378608330 is a wasteful number, since it uses less digits than its factorization.

1378608330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39171.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1378608330 is about 37129.6152686774. The cubic root of 1378608330 is about 1112.9619052340.

The spelling of 1378608330 in words is "one billion, three hundred seventy-eight million, six hundred eight thousand, three hundred thirty".