9004715640 has 96 divisors (see below), whose sum is σ = 29567144880. Its totient is φ = 2376493056.

The previous prime is 9004715633. The next prime is 9004715659. The reversal of 9004715640 is 465174009.

9004715640 is a `hidden beast` number, since 9 + 0 + 0 + 4 + 7 + 1 + 5 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 9004715595 and 9004715604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94014 + ... + 163853.

Almost surely, 2^9004715640 is an apocalyptic number.

9004715640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9004715640 is an abundant number, since it is smaller than the sum of its proper divisors (20562429240).

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

9004715640 is a wasteful number, since it uses less digits than its factorization.

9004715640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257981 (or 257974 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 9004715640 is about 94893.1801553726. The cubic root of 9004715640 is about 2080.4470531932.

Adding to 9004715640 its reverse (465174009), we get a palindrome (9469889649).

The spelling of 9004715640 in words is "nine billion, four million, seven hundred fifteen thousand, six hundred forty".