9006140 has 96 divisors (see below), whose sum is σ = 23030784. Its totient is φ = 2914560.

The previous prime is 9006139. The next prime is 9006157. The reversal of 9006140 is 416009.

9006140 = T₁₆₉ + T₁₇₀ + ... + T₃₈₈.

It is a super-2 number, since 2×9006140² = 162221115399200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 134387 + ... + 134453.

It is an arithmetic number, because the mean of its divisors is an integer number (239904).

Almost surely, 2^9006140 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 9006140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11515392).

9006140 is an abundant number, since it is smaller than the sum of its proper divisors (14024644).

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

9006140 is a wasteful number, since it uses less digits than its factorization.

9006140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 9006140 is about 3001.0231588577. The cubic root of 9006140 is about 208.0556741992.

The spelling of 9006140 in words is "nine million, six thousand, one hundred forty".