378408205 has 16 divisors (see below), whose sum is σ = 525216384. Its totient is φ = 256351680.

The previous prime is 378408197. The next prime is 378408223. The reversal of 378408205 is 502804873.

It is not a de Polignac number, because 378408205 - 2³ = 378408197 is a prime.

It is a super-2 number, since 2×378408205² = 286385539222644050, which contains 22 as substring.

It is a congruent number.

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, 62226 + ... + 68035.

It is an arithmetic number, because the mean of its divisors is an integer number (32826024).

Almost surely, 2^378408205 is an apocalyptic number.

378408205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378408205 is a deficient number, since it is larger than the sum of its proper divisors (146808179).

378408205 is a wasteful number, since it uses less digits than its factorization.

378408205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130356.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 378408205 is about 19452.7171623915. The cubic root of 378408205 is about 723.3028586669.

The spelling of 378408205 in words is "three hundred seventy-eight million, four hundred eight thousand, two hundred five".