9049728 has 32 divisors (see below), whose sum is σ = 24039360. Its totient is φ = 3016448.

The previous prime is 9049727. The next prime is 9049753. The reversal of 9049728 is 8279409.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (9049727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11400 + ... + 12167.

It is an arithmetic number, because the mean of its divisors is an integer number (751230).

Almost surely, 2^9049728 is an apocalyptic number.

It is an amenable number.

9049728 is an abundant number, since it is smaller than the sum of its proper divisors (14989632).

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

9049728 is a wasteful number, since it uses less digits than its factorization.

9049728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23584 (or 23572 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9049728 is about 3008.2765830289. The cubic root of 9049728 is about 208.3907840846.

It can be divided in two parts, 90497 and 28, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 9049728 in words is "nine million, forty-nine thousand, seven hundred twenty-eight".