378181344 has 48 divisors (see below), whose sum is σ = 1026965520. Its totient is φ = 121712640.

The previous prime is 378181333. The next prime is 378181351. The reversal of 378181344 is 443181873.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×378181344² = 286042257899292672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 65137 + ... + 70704.

It is an arithmetic number, because the mean of its divisors is an integer number (21395115).

Almost surely, 2^378181344 is an apocalyptic number.

It is an amenable number.

378181344 is an abundant number, since it is smaller than the sum of its proper divisors (648784176).

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

378181344 is a wasteful number, since it uses less digits than its factorization.

378181344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135883 (or 135875 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 378181344 is about 19446.8852004633. The cubic root of 378181344 is about 723.1582863859.

The spelling of 378181344 in words is "three hundred seventy-eight million, one hundred eighty-one thousand, three hundred forty-four".