381678804 has 60 divisors (see below), whose sum is σ = 1074548244. Its totient is φ = 117438336.

The previous prime is 381678763. The next prime is 381678809. The reversal of 381678804 is 408876183.

It can be written as a sum of positive squares in 2 ways, for example, as 259532100 + 122146704 = 16110^2 + 11052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 381678804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381678809) 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 19 ways as a sum of consecutive naturals, for example, 41097 + ... + 49520.

Almost surely, 2^381678804 is an apocalyptic number.

It is an amenable number.

381678804 is an abundant number, since it is smaller than the sum of its proper divisors (692869440).

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

381678804 is a wasteful number, since it uses less digits than its factorization.

381678804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90646 (or 90635 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 381678804 is about 19536.6016492122. The cubic root of 381678804 is about 725.3807300305.

It can be divided in two parts, 38167 and 8804, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 381678804 in words is "three hundred eighty-one million, six hundred seventy-eight thousand, eight hundred four".