70439968 has 48 divisors (see below), whose sum is σ = 144884376. Its totient is φ = 33679360.

The previous prime is 70439953. The next prime is 70439969. The reversal of 70439968 is 86993407.

It can be written as a sum of positive squares in 4 ways, for example, as 25120144 + 45319824 = 5012^2 + 6732^2 .

It is not an unprimeable number, because it can be changed into a prime (70439969) 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, 69030 + ... + 70042.

Almost surely, 2^70439968 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 70439968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72442188).

70439968 is an abundant number, since it is smaller than the sum of its proper divisors (74444408).

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

70439968 is a wasteful number, since it uses less digits than its factorization.

70439968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 70439968 is about 8392.8521969590. The cubic root of 70439968 is about 412.9901718763.

The spelling of 70439968 in words is "seventy million, four hundred thirty-nine thousand, nine hundred sixty-eight".