9287228144 has 20 divisors (see below), whose sum is σ = 18776353296. Its totient is φ = 4441717632.

The previous prime is 9287228143. The next prime is 9287228147. The reversal of 9287228144 is 4418227829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9287228143) 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, 12618149 + ... + 12618884.

Almost surely, 2^9287228144 is an apocalyptic number.

It is an amenable number.

9287228144 is an abundant number, since it is smaller than the sum of its proper divisors (9489125152).

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

9287228144 is a wasteful number, since it uses less digits than its factorization.

9287228144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25237064 (or 25237058 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 9287228144 is about 96370.2658707550. The cubic root of 9287228144 is about 2101.9806063930.

The spelling of 9287228144 in words is "nine billion, two hundred eighty-seven million, two hundred twenty-eight thousand, one hundred forty-four".