378543840 has 96 divisors (see below), whose sum is σ = 1255201920. Its totient is φ = 95629824.

The previous prime is 378543839. The next prime is 378543853. The reversal of 378543840 is 48345873.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 378543792 and 378543801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11634 + ... + 29873.

It is an arithmetic number, because the mean of its divisors is an integer number (13075020).

Almost surely, 2^378543840 is an apocalyptic number.

378543840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378543840 is an abundant number, since it is smaller than the sum of its proper divisors (876658080).

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

378543840 is a wasteful number, since it uses less digits than its factorization.

378543840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41544 (or 41536 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 378543840 is about 19456.2031239397. The cubic root of 378543840 is about 723.3892675262.

The spelling of 378543840 in words is "three hundred seventy-eight million, five hundred forty-three thousand, eight hundred forty".