9045428 has 48 divisors (see below), whose sum is σ = 19805184. Its totient is φ = 3525120.

The previous prime is 9045409. The next prime is 9045431. The reversal of 9045428 is 8245409.

It is a junction number, because it is equal to n+sod(n) for n = 9045394 and 9045403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14450 + ... + 15062.

It is an arithmetic number, because the mean of its divisors is an integer number (412608).

Almost surely, 2^9045428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9045428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9902592).

9045428 is an abundant number, since it is smaller than the sum of its proper divisors (10759756).

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

9045428 is a wasteful number, since it uses less digits than its factorization.

9045428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 9045428 is about 3007.5618031888. The cubic root of 9045428 is about 208.3577730617.

The spelling of 9045428 in words is "nine million, forty-five thousand, four hundred twenty-eight".