9000428 has 12 divisors (see below), whose sum is σ = 16009392. Its totient is φ = 4426320.

The previous prime is 9000427. The next prime is 9000451. The reversal of 9000428 is 8240009.

9000428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9000427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18200 + ... + 18687.

It is an arithmetic number, because the mean of its divisors is an integer number (1334116).

Almost surely, 2^9000428 is an apocalyptic number.

It is an amenable number.

9000428 is a deficient number, since it is larger than the sum of its proper divisors (7008964).

9000428 is a wasteful number, since it uses less digits than its factorization.

9000428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36952 (or 36950 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 9000428 is about 3000.0713324853. The cubic root of 9000428 is about 208.0116795710.

The spelling of 9000428 in words is "nine million, four hundred twenty-eight", and thus it is an aban number.