378915306 has 32 divisors (see below), whose sum is σ = 944828928. Its totient is φ = 98419440.

The previous prime is 378915301. The next prime is 378915307. The reversal of 378915306 is 603519873.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (378915301) 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, 409620 + ... + 410543.

It is an arithmetic number, because the mean of its divisors is an integer number (29525904).

Almost surely, 2^378915306 is an apocalyptic number.

378915306 is an abundant number, since it is smaller than the sum of its proper divisors (565913622).

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

378915306 is a wasteful number, since it uses less digits than its factorization.

378915306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820186.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 378915306 is about 19465.7469931159. The cubic root of 378915306 is about 723.6258113911.

The spelling of 378915306 in words is "three hundred seventy-eight million, nine hundred fifteen thousand, three hundred six".