9144090 has 96 divisors (see below), whose sum is σ = 25474176. Its totient is φ = 2358720.

The previous prime is 9144067. The next prime is 9144131. The reversal of 9144090 is 904419.

It is a super-2 number, since 2×9144090² = 167228763856200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 47 ways as a sum of consecutive naturals, for example, 128755 + ... + 128825.

It is an arithmetic number, because the mean of its divisors is an integer number (265356).

Almost surely, 2^9144090 is an apocalyptic number.

9144090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9144090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12737088).

9144090 is an abundant number, since it is smaller than the sum of its proper divisors (16330086).

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

9144090 is a wasteful number, since it uses less digits than its factorization.

9144090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9144090 is about 3023.9196417894. The cubic root of 9144090 is about 209.1125817599.

The spelling of 9144090 in words is "nine million, one hundred forty-four thousand, ninety".