378919426 has 16 divisors (see below), whose sum is σ = 603472896. Its totient is φ = 177823296.

The previous prime is 378919399. The next prime is 378919427. The reversal of 378919426 is 624919873.

It is a self number, because there is not a number n which added to its sum of digits gives 378919426.

It is not an unprimeable number, because it can be changed into a prime (378919427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706 + ... + 27661.

It is an arithmetic number, because the mean of its divisors is an integer number (37717056).

Almost surely, 2^378919426 is an apocalyptic number.

378919426 is a deficient number, since it is larger than the sum of its proper divisors (224553470).

378919426 is a wasteful number, since it uses less digits than its factorization.

378919426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30753.

The product of its digits is 653184, while the sum is 49.

The square root of 378919426 is about 19465.8528197457. The cubic root of 378919426 is about 723.6284340770.

The spelling of 378919426 in words is "three hundred seventy-eight million, nine hundred nineteen thousand, four hundred twenty-six".