9028644240 has 640 divisors, whose sum is σ = 38260408320. Its totient is φ = 1703116800.

The previous prime is 9028644239. The next prime is 9028644277. The reversal of 9028644240 is 424468209.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9110145 + ... + 9111135.

It is an arithmetic number, because the mean of its divisors is an integer number (59781888).

Almost surely, 2^9028644240 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 9028644240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19130204160).

9028644240 is an abundant number, since it is smaller than the sum of its proper divisors (29231764080).

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

9028644240 is a wasteful number, since it uses less digits than its factorization.

9028644240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 9028644240 is about 95019.1782747041. The cubic root of 9028644240 is about 2082.2882423453.

The spelling of 9028644240 in words is "nine billion, twenty-eight million, six hundred forty-four thousand, two hundred forty".