378811185 has 16 divisors (see below), whose sum is σ = 609820224. Its totient is φ = 200791872.

The previous prime is 378811163. The next prime is 378811201. The reversal of 378811185 is 581118873.

It is not a de Polignac number, because 378811185 - 2¹⁵ = 378778417 is a prime.

It is a super-2 number, since 2×378811185² = 286995827762208450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75022 + ... + 79911.

It is an arithmetic number, because the mean of its divisors is an integer number (38113764).

Almost surely, 2^378811185 is an apocalyptic number.

It is an amenable number.

378811185 is a deficient number, since it is larger than the sum of its proper divisors (231009039).

378811185 is a wasteful number, since it uses less digits than its factorization.

378811185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155104.

The product of its digits is 53760, while the sum is 42.

The square root of 378811185 is about 19463.0723422588. The cubic root of 378811185 is about 723.5595243306.

The spelling of 378811185 in words is "three hundred seventy-eight million, eight hundred eleven thousand, one hundred eighty-five".