8908971440 has 20 divisors (see below), whose sum is σ = 20713358784. Its totient is φ = 3563588544.

The previous prime is 8908971439. The next prime is 8908971443. The reversal of 8908971440 is 441798098.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (8908971443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55680992 + ... + 55681151.

Almost surely, 2^8908971440 is an apocalyptic number.

8908971440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8908971440 is an abundant number, since it is smaller than the sum of its proper divisors (11804387344).

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

8908971440 is a wasteful number, since it uses less digits than its factorization.

8908971440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111362156 (or 111362150 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 8908971440 is about 94387.3478809528. The cubic root of 8908971440 is about 2073.0471928144.

The spelling of 8908971440 in words is "eight billion, nine hundred eight million, nine hundred seventy-one thousand, four hundred forty".