9541818 has 72 divisors (see below), whose sum is σ = 24544884. Its totient is φ = 2661120.

The previous prime is 9541813. The next prime is 9541823. The reversal of 9541818 is 8181459.

It is an interprime number because it is at equal distance from previous prime (9541813) and next prime (9541823).

It can be written as a sum of positive squares in 2 ways, for example, as 8625969 + 915849 = 2937^2 + 957^2 .

9541818 is a modest number, since divided by 1818 gives 954 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9541813) 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 35 ways as a sum of consecutive naturals, for example, 28146 + ... + 28482.

Almost surely, 2^9541818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9541818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12272442).

9541818 is an abundant number, since it is smaller than the sum of its proper divisors (15003066).

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

9541818 is a wasteful number, since it uses less digits than its factorization.

9541818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 366 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 9541818 is about 3088.9833278929. The cubic root of 9541818 is about 212.1014851715.

It can be divided in two parts, 954 and 1818, that added together give a palindrome (2772).

The spelling of 9541818 in words is "nine million, five hundred forty-one thousand, eight hundred eighteen".