378815001 has 16 divisors (see below), whose sum is σ = 509937600. Its totient is φ = 250126848.

The previous prime is 378814999. The next prime is 378815011. The reversal of 378815001 is 100518873.

It is not a de Polignac number, because 378815001 - 2¹ = 378814999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378815011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253665 + ... + 255153.

It is an arithmetic number, because the mean of its divisors is an integer number (31871100).

Almost surely, 2^378815001 is an apocalyptic number.

It is an amenable number.

378815001 is a deficient number, since it is larger than the sum of its proper divisors (131122599).

378815001 is a wasteful number, since it uses less digits than its factorization.

378815001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 378815001 is about 19463.1703738111. The cubic root of 378815001 is about 723.5619539437.

The spelling of 378815001 in words is "three hundred seventy-eight million, eight hundred fifteen thousand, one".