9030840 has 128 divisors (see below), whose sum is σ = 33384960. Its totient is φ = 1903104.

The previous prime is 9030839. The next prime is 9030851. The reversal of 9030840 is 480309.

It is a super-2 number, since 2×9030840² = 163112142211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 9030840.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10507 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (260820).

Almost surely, 2^9030840 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 9030840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16692480).

9030840 is an abundant number, since it is smaller than the sum of its proper divisors (24354120).

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

9030840 is a wasteful number, since it uses less digits than its factorization.

9030840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 9030840 is about 3005.1356042615. The cubic root of 9030840 is about 208.2457032347.

It can be divided in two parts, 9030 and 840, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 9030840 in words is "nine million, thirty thousand, eight hundred forty".