64316438 has 4 divisors (see below), whose sum is σ = 96474660. Its totient is φ = 32158218.

The previous prime is 64316437. The next prime is 64316443. The reversal of 64316438 is 83461346.

64316438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83461346 = 2 ⋅41730673.

It is a junction number, because it is equal to n+sod(n) for n = 64316398 and 64316407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64316437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16079108 + ... + 16079111.

It is an arithmetic number, because the mean of its divisors is an integer number (24118665).

Almost surely, 2^64316438 is an apocalyptic number.

64316438 is a deficient number, since it is larger than the sum of its proper divisors (32158222).

64316438 is a wasteful number, since it uses less digits than its factorization.

64316438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32158221.

The product of its digits is 41472, while the sum is 35.

The square root of 64316438 is about 8019.7529887148. The cubic root of 64316438 is about 400.6581622954.

The spelling of 64316438 in words is "sixty-four million, three hundred sixteen thousand, four hundred thirty-eight".