8990896320 has 420 divisors, whose sum is σ = 37209039120. Its totient is φ = 2054771712.

The previous prime is 8990896319. The next prime is 8990896367. The reversal of 8990896320 is 236980998.

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1266541 + ... + 1273619.

Almost surely, 2^8990896320 is an apocalyptic number.

8990896320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8990896320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18604519560).

8990896320 is an abundant number, since it is smaller than the sum of its proper divisors (28218142800).

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

8990896320 is a wasteful number, since it uses less digits than its factorization.

8990896320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122 (or 7096 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 8990896320 is about 94820.3370590930. The cubic root of 8990896320 is about 2079.3822376466.

The spelling of 8990896320 in words is "eight billion, nine hundred ninety million, eight hundred ninety-six thousand, three hundred twenty".