8999562240 has 176 divisors, whose sum is σ = 31983310560. Its totient is φ = 2399846400.

The previous prime is 8999562223. The next prime is 8999562259. The reversal of 8999562240 is 422659998.

It is a happy number.

8999562240 is a `hidden beast` number, since 8 + 9 + 9 + 9 + 5 + 622 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105690 + ... + 170790.

Almost surely, 2^8999562240 is an apocalyptic number.

8999562240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8999562240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15991655280).

8999562240 is an abundant number, since it is smaller than the sum of its proper divisors (22983748320).

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

8999562240 is a wasteful number, since it uses less digits than its factorization.

8999562240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65135 (or 65111 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 8999562240 is about 94866.0225792143. The cubic root of 8999562240 is about 2080.0500974127.

The spelling of 8999562240 in words is "eight billion, nine hundred ninety-nine million, five hundred sixty-two thousand, two hundred forty".