43316064 has 144 divisors (see below), whose sum is σ = 136687824. Its totient is φ = 13009920.

The previous prime is 43316057. The next prime is 43316069. The reversal of 43316064 is 46061334.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43316069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383272 + ... + 383384.

It is an arithmetic number, because the mean of its divisors is an integer number (949221).

Almost surely, 2^43316064 is an apocalyptic number.

43316064 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43316064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68343912).

43316064 is an abundant number, since it is smaller than the sum of its proper divisors (93371760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43316064 is a wasteful number, since it uses less digits than its factorization.

43316064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 43316064 is about 6581.4940553039. The cubic root of 43316064 is about 351.1960820300.

Adding to 43316064 its reverse (46061334), we get a palindrome (89377398).

The spelling of 43316064 in words is "forty-three million, three hundred sixteen thousand, sixty-four".