8442064 has 40 divisors (see below), whose sum is σ = 17764488. Its totient is φ = 3870720.

The previous prime is 8442059. The next prime is 8442079. The reversal of 8442064 is 4602448.

It can be written as a sum of positive squares in 4 ways, for example, as 824464 + 7617600 = 908^2 + 2760^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10774 + ... + 11530.

Almost surely, 2^8442064 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 8442064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8882244).

8442064 is an abundant number, since it is smaller than the sum of its proper divisors (9322424).

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

8442064 is a wasteful number, since it uses less digits than its factorization.

8442064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 8442064 is about 2905.5230166013. The cubic root of 8442064 is about 203.6180215970.

The spelling of 8442064 in words is "eight million, four hundred forty-two thousand, sixty-four".