378530789 has 16 divisors (see below), whose sum is σ = 493291008. Its totient is φ = 281878272.

The previous prime is 378530753. The next prime is 378530813. The reversal of 378530789 is 987035873.

It is a de Polignac number, because none of the positive numbers 2^k-378530789 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378530189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120797 + ... + 123890.

It is an arithmetic number, because the mean of its divisors is an integer number (30830688).

Almost surely, 2^378530789 is an apocalyptic number.

It is an amenable number.

378530789 is a deficient number, since it is larger than the sum of its proper divisors (114760219).

378530789 is a wasteful number, since it uses less digits than its factorization.

378530789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244724.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 378530789 is about 19455.8677267296. The cubic root of 378530789 is about 723.3809540358.

The spelling of 378530789 in words is "three hundred seventy-eight million, five hundred thirty thousand, seven hundred eighty-nine".