378143904 has 24 divisors (see below), whose sum is σ = 992628000. Its totient is φ = 126047936.

The previous prime is 378143893. The next prime is 378143917. The reversal of 378143904 is 409341873.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×378143904² = 285985624264722432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969404 + ... + 1969595.

It is an arithmetic number, because the mean of its divisors is an integer number (41359500).

Almost surely, 2^378143904 is an apocalyptic number.

It is an amenable number.

378143904 is an abundant number, since it is smaller than the sum of its proper divisors (614484096).

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

378143904 is a wasteful number, since it uses less digits than its factorization.

378143904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3939012 (or 3939004 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 378143904 is about 19445.9225546128. The cubic root of 378143904 is about 723.1344213450.

The spelling of 378143904 in words is "three hundred seventy-eight million, one hundred forty-three thousand, nine hundred four".