378046815 has 16 divisors (see below), whose sum is σ = 606480000. Its totient is φ = 201089952.

The previous prime is 378046789. The next prime is 378046817. The reversal of 378046815 is 518640873.

It is not a de Polignac number, because 378046815 - 2⁵ = 378046783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378046817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27565 + ... + 38934.

It is an arithmetic number, because the mean of its divisors is an integer number (37905000).

Almost surely, 2^378046815 is an apocalyptic number.

378046815 is a deficient number, since it is larger than the sum of its proper divisors (228433185).

378046815 is a wasteful number, since it uses less digits than its factorization.

378046815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66886.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 378046815 is about 19443.4260098368. The cubic root of 378046815 is about 723.0725274410.

The spelling of 378046815 in words is "three hundred seventy-eight million, forty-six thousand, eight hundred fifteen".