8893964440 has 64 divisors (see below), whose sum is σ = 20375193600. Its totient is φ = 3493062528.

The previous prime is 8893964423. The next prime is 8893964479. The reversal of 8893964440 is 444693988.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2563587 + ... + 2567053.

It is an arithmetic number, because the mean of its divisors is an integer number (318362400).

Almost surely, 2^8893964440 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 8893964440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10187596800).

8893964440 is an abundant number, since it is smaller than the sum of its proper divisors (11481229160).

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

8893964440 is a wasteful number, since it uses less digits than its factorization.

8893964440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The square root of 8893964440 is about 94307.8174914466. The cubic root of 8893964440 is about 2071.8825352181.

The spelling of 8893964440 in words is "eight billion, eight hundred ninety-three million, nine hundred sixty-four thousand, four hundred forty".