378405378 has 32 divisors (see below), whose sum is σ = 905587200. Its totient is φ = 116432208.

The previous prime is 378405343. The next prime is 378405389. The reversal of 378405378 is 873504873.

378405378 is a `hidden beast` number, since 3 + 78 + 40 + 537 + 8 = 666.

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, 268818 + ... + 270221.

It is an arithmetic number, because the mean of its divisors is an integer number (28299600).

Almost surely, 2^378405378 is an apocalyptic number.

378405378 is an abundant number, since it is smaller than the sum of its proper divisors (527181822).

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

378405378 is a wasteful number, since it uses less digits than its factorization.

378405378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539063 (or 539057 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 378405378 is about 19452.6444988850. The cubic root of 378405378 is about 723.3010574530.

The spelling of 378405378 in words is "three hundred seventy-eight million, four hundred five thousand, three hundred seventy-eight".