9047871240 has 128 divisors (see below), whose sum is σ = 29731536000. Its totient is φ = 2192519168.

The previous prime is 9047871233. The next prime is 9047871247. The reversal of 9047871240 is 421787409.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9047871233) and next prime (9047871247).

It is a junction number, because it is equal to n+sod(n) for n = 9047871192 and 9047871201.

It is not an unprimeable number, because it can be changed into a prime (9047871247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17310 + ... + 135629.

It is an arithmetic number, because the mean of its divisors is an integer number (232277625).

Almost surely, 2^9047871240 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 9047871240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14865768000).

9047871240 is an abundant number, since it is smaller than the sum of its proper divisors (20683664760).

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

9047871240 is a wasteful number, since it uses less digits than its factorization.

9047871240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152999 (or 152995 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 9047871240 is about 95120.2987800186. The cubic root of 9047871240 is about 2083.7653105446.

The spelling of 9047871240 in words is "nine billion, forty-seven million, eight hundred seventy-one thousand, two hundred forty".