9000728492 has 36 divisors (see below), whose sum is σ = 18643650480. Its totient is φ = 3724429632.

The previous prime is 9000728419. The next prime is 9000728501. The reversal of 9000728492 is 2948270009.

9000728492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9000728492² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167567 + ... + 214662.

It is an arithmetic number, because the mean of its divisors is an integer number (517879180).

Almost surely, 2^9000728492 is an apocalyptic number.

It is an amenable number.

9000728492 is an abundant number, since it is smaller than the sum of its proper divisors (9642921988).

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

9000728492 is a wasteful number, since it uses less digits than its factorization.

9000728492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382298 (or 382267 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 9000728492 is about 94872.1692173211. The cubic root of 9000728492 is about 2080.1399446645.

The spelling of 9000728492 in words is "nine billion, seven hundred twenty-eight thousand, four hundred ninety-two".