39043968 has 64 divisors (see below), whose sum is σ = 109829520. Its totient is φ = 12247040.

The previous prime is 39043967. The next prime is 39043997. The reversal of 39043968 is 86934093.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39043967) 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, 3538 + ... + 9518.

Almost surely, 2^39043968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39043968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54914760).

39043968 is an abundant number, since it is smaller than the sum of its proper divisors (70785552).

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

39043968 is a wasteful number, since it uses less digits than its factorization.

39043968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6015 (or 6003 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 39043968 is about 6248.5172641195. The cubic root of 39043968 is about 339.2485364270.

The spelling of 39043968 in words is "thirty-nine million, forty-three thousand, nine hundred sixty-eight".