378272865 has 16 divisors (see below), whose sum is σ = 640839168. Its totient is φ = 189878016.

The previous prime is 378272863. The next prime is 378272879. The reversal of 378272865 is 568272873.

It is not a de Polignac number, because 378272865 - 2¹ = 378272863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378272863) 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, 741457 + ... + 741966.

It is an arithmetic number, because the mean of its divisors is an integer number (40052448).

Almost surely, 2^378272865 is an apocalyptic number.

It is an amenable number.

378272865 is a deficient number, since it is larger than the sum of its proper divisors (262566303).

378272865 is a wasteful number, since it uses less digits than its factorization.

378272865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483448.

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

The square root of 378272865 is about 19449.2381598869. The cubic root of 378272865 is about 723.2166171597.

The spelling of 378272865 in words is "three hundred seventy-eight million, two hundred seventy-two thousand, eight hundred sixty-five".