378867405 has 32 divisors (see below), whose sum is σ = 696824064. Its totient is φ = 172187136.

The previous prime is 378867403. The next prime is 378867413. The reversal of 378867405 is 504768873.

It is not a de Polignac number, because 378867405 - 2¹ = 378867403 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378867403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7737 + ... + 28593.

It is an arithmetic number, because the mean of its divisors is an integer number (21775752).

Almost surely, 2^378867405 is an apocalyptic number.

378867405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378867405 is a deficient number, since it is larger than the sum of its proper divisors (317956659).

378867405 is a wasteful number, since it uses less digits than its factorization.

378867405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 378867405 is about 19464.5165621959. The cubic root of 378867405 is about 723.5953174521.

The spelling of 378867405 in words is "three hundred seventy-eight million, eight hundred sixty-seven thousand, four hundred five".