378478364 has 24 divisors (see below), whose sum is σ = 723975168. Its totient is φ = 171696240.

The previous prime is 378478319. The next prime is 378478369. The reversal of 378478364 is 463874873.

378478364 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×378478364² = 286491744032232992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378478369) 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, 14789 + ... + 31235.

It is an arithmetic number, because the mean of its divisors is an integer number (30165632).

Almost surely, 2^378478364 is an apocalyptic number.

It is an amenable number.

378478364 is a deficient number, since it is larger than the sum of its proper divisors (345496804).

378478364 is a wasteful number, since it uses less digits than its factorization.

378478364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16985 (or 16983 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 50.

The square root of 378478364 is about 19454.5204001538. The cubic root of 378478364 is about 723.3475573712.

The spelling of 378478364 in words is "three hundred seventy-eight million, four hundred seventy-eight thousand, three hundred sixty-four".