9876531240 has 48 divisors (see below), whose sum is σ = 32098727700. Its totient is φ = 2633741568.

The previous prime is 9876531209. The next prime is 9876531271. The reversal of 9876531240 is 421356789.

9876531240 is a `hidden beast` number, since 9 + 8 + 76 + 531 + 2 + 40 = 666.

9876531240 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9876531209) and next prime (9876531271).

It can be written as a sum of positive squares in 2 ways, for example, as 9074848644 + 801682596 = 95262^2 + 28314^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

9876531240 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13717045 + ... + 13717764.

It is a 2-persistent number, because it is pandigital, and so is 2⋅9876531240 = 19753062480, but 3⋅9876531240 = 29629593720 is not.

Almost surely, 2^9876531240 is an apocalyptic number.

9876531240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9876531240 is an abundant number, since it is smaller than the sum of its proper divisors (22222196460).

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

9876531240 is a wasteful number, since it uses less digits than its factorization.

9876531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27434826 (or 27434819 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 9876531240 is about 99380.7387776927. The cubic root of 9876531240 is about 2145.5310990308.

The spelling of 9876531240 in words is "nine billion, eight hundred seventy-six million, five hundred thirty-one thousand, two hundred forty".