9021144 has 32 divisors (see below), whose sum is σ = 24603840. Its totient is φ = 2733600.

The previous prime is 9021137. The next prime is 9021149. The reversal of 9021144 is 4411209.

It is a self number, because there is not a number n which added to its sum of digits gives 9021144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9021149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16822 + ... + 17349.

It is an arithmetic number, because the mean of its divisors is an integer number (768870).

Almost surely, 2^9021144 is an apocalyptic number.

It is an amenable number.

9021144 is an abundant number, since it is smaller than the sum of its proper divisors (15582696).

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

9021144 is a wasteful number, since it uses less digits than its factorization.

9021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34191 (or 34187 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 9021144 is about 3003.5219326651. The cubic root of 9021144 is about 208.1711485830.

The spelling of 9021144 in words is "nine million, twenty-one thousand, one hundred forty-four".