378426865 has 8 divisors (see below), whose sum is σ = 454327488. Its totient is φ = 302598000.

The previous prime is 378426863. The next prime is 378426869. The reversal of 378426865 is 568624873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378426865 - 2¹ = 378426863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378426863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5557 + ... + 28066.

It is an arithmetic number, because the mean of its divisors is an integer number (56790936).

Almost surely, 2^378426865 is an apocalyptic number.

It is an amenable number.

378426865 is a deficient number, since it is larger than the sum of its proper divisors (75900623).

378426865 is a wasteful number, since it uses less digits than its factorization.

378426865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35879.

The product of its digits is 1935360, while the sum is 49.

The square root of 378426865 is about 19453.1967809921. The cubic root of 378426865 is about 723.3147476000.

The spelling of 378426865 in words is "three hundred seventy-eight million, four hundred twenty-six thousand, eight hundred sixty-five".