378531408 has 40 divisors (see below), whose sum is σ = 1000619488. Its totient is φ = 123242112.

The previous prime is 378531397. The next prime is 378531409. The reversal of 378531408 is 804135873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378531409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89635 + ... + 93762.

Almost surely, 2^378531408 is an apocalyptic number.

It is an amenable number.

378531408 is an abundant number, since it is smaller than the sum of its proper divisors (622088080).

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

378531408 is a wasteful number, since it uses less digits than its factorization.

378531408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183451 (or 183445 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 378531408 is about 19455.8836345204. The cubic root of 378531408 is about 723.3813483432.

The spelling of 378531408 in words is "three hundred seventy-eight million, five hundred thirty-one thousand, four hundred eight".