9440181 has 6 divisors (see below), whose sum is σ = 13635830. Its totient is φ = 6293448.

The previous prime is 9440173. The next prime is 9440183. The reversal of 9440181 is 1810449.

It can be written as a sum of positive squares in only one way, i.e., 8071281 + 1368900 = 2841^2 + 1170^2 .

It is not a de Polignac number, because 9440181 - 2³ = 9440173 is a prime.

It is a super-2 number, since 2×9440181² = 178234034625522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9440183) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 524446 + ... + 524463.

Almost surely, 2^9440181 is an apocalyptic number.

It is an amenable number.

9440181 is a deficient number, since it is larger than the sum of its proper divisors (4195649).

9440181 is a wasteful number, since it uses less digits than its factorization.

9440181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048915 (or 1048912 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 9440181 is about 3072.4877542474. The cubic root of 9440181 is about 211.3457117963.

The spelling of 9440181 in words is "nine million, four hundred forty thousand, one hundred eighty-one".