7065438408 has 256 divisors, whose sum is σ = 24518246400. Its totient is φ = 1838453760.

The previous prime is 7065438383. The next prime is 7065438409. The reversal of 7065438408 is 8048345607.

It is not an unprimeable number, because it can be changed into a prime (7065438409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 792391 + ... + 801257.

It is an arithmetic number, because the mean of its divisors is an integer number (95774400).

Almost surely, 2^7065438408 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 7065438408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12259123200).

7065438408 is an abundant number, since it is smaller than the sum of its proper divisors (17452807992).

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

7065438408 is a wasteful number, since it uses less digits than its factorization.

7065438408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8937 (or 8927 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 7065438408 is about 84056.1622250267. The cubic root of 7065438408 is about 1918.8736166712.

The spelling of 7065438408 in words is "seven billion, sixty-five million, four hundred thirty-eight thousand, four hundred eight".