9261389040 has 80 divisors (see below), whose sum is σ = 28745556000. Its totient is φ = 2466671616.

The previous prime is 9261388999. The next prime is 9261389077. The reversal of 9261389040 is 409831629.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 9261388983 and 9261389001.

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, 175686 + ... + 222234.

It is an arithmetic number, because the mean of its divisors is an integer number (359319450).

Almost surely, 2^9261389040 is an apocalyptic number.

It is an amenable number.

9261389040 is an abundant number, since it is smaller than the sum of its proper divisors (19484166960).

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

9261389040 is a wasteful number, since it uses less digits than its factorization.

9261389040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47394 (or 47388 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 9261389040 is about 96236.1108939882. The cubic root of 9261389040 is about 2100.0294054839.

The spelling of 9261389040 in words is "nine billion, two hundred sixty-one million, three hundred eighty-nine thousand, forty".