378819844 has 48 divisors (see below), whose sum is σ = 751830912. Its totient is φ = 165699072.

The previous prime is 378819839. The next prime is 378819877. The reversal of 378819844 is 448918873.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 378819791 and 378819800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133747 + ... + 136549.

It is an arithmetic number, because the mean of its divisors is an integer number (15663144).

Almost surely, 2^378819844 is an apocalyptic number.

It is an amenable number.

378819844 is a deficient number, since it is larger than the sum of its proper divisors (373011068).

378819844 is a wasteful number, since it uses less digits than its factorization.

378819844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2954 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 52.

The square root of 378819844 is about 19463.2947878821. The cubic root of 378819844 is about 723.5650374151.

It can be divided in two parts, 37881984 and 4, that multiplied together give a triangular number (151527936 = T₁₇₄₀₈).

The spelling of 378819844 in words is "three hundred seventy-eight million, eight hundred nineteen thousand, eight hundred forty-four".