64384378 has 8 divisors (see below), whose sum is σ = 96808320. Its totient is φ = 32114940.

The previous prime is 64384367. The next prime is 64384417. The reversal of 64384378 is 87348346.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37578 + ... + 39253.

It is an arithmetic number, because the mean of its divisors is an integer number (12101040).

Almost surely, 2^64384378 is an apocalyptic number.

64384378 is a deficient number, since it is larger than the sum of its proper divisors (32423942).

64384378 is a wasteful number, since it uses less digits than its factorization.

64384378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77252.

The product of its digits is 387072, while the sum is 43.

The square root of 64384378 is about 8023.9876620045. The cubic root of 64384378 is about 400.7991896762.

It can be divided in two parts, 6438 and 4378, that added together give a square (10816 = 104²).

The spelling of 64384378 in words is "sixty-four million, three hundred eighty-four thousand, three hundred seventy-eight".