9671440 has 40 divisors (see below), whose sum is σ = 22920408. Its totient is φ = 3793920.

The previous prime is 9671429. The next prime is 9671447. The reversal of 9671440 is 441769.

It can be written as a sum of positive squares in 4 ways, for example, as 2119936 + 7551504 = 1456^2 + 2748^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (9671447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100 + ... + 5380.

Almost surely, 2^9671440 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 9671440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11460204).

9671440 is an abundant number, since it is smaller than the sum of its proper divisors (13248968).

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

9671440 is a wasteful number, since it uses less digits than its factorization.

9671440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 9671440 is about 3109.8938888650. The cubic root of 9671440 is about 213.0576081991.

The spelling of 9671440 in words is "nine million, six hundred seventy-one thousand, four hundred forty".