1002320064 has 84 divisors (see below), whose sum is σ = 2913552720. Its totient is φ = 329387520.

The previous prime is 1002320063. The next prime is 1002320087. The reversal of 1002320064 is 4600232001.

It is a happy number.

1002320064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1002320063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28642 + ... + 53150.

Almost surely, 2^1002320064 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 1002320064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456776360).

1002320064 is an abundant number, since it is smaller than the sum of its proper divisors (1911232656).

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

1002320064 is a wasteful number, since it uses less digits than its factorization.

1002320064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24598 (or 24585 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002320064 is about 31659.4387821389. The cubic root of 1002320064 is about 1000.7727573589.

Adding to 1002320064 its reverse (4600232001), we get a palindrome (5602552065).

The spelling of 1002320064 in words is "one billion, two million, three hundred twenty thousand, sixty-four".