10442181 has 4 divisors (see below), whose sum is σ = 13922912. Its totient is φ = 6961452.

The previous prime is 10442119. The next prime is 10442197. The reversal of 10442181 is 18124401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10442181 - 2⁷ = 10442053 is a prime.

It is a super-2 number, since 2×10442181² = 218078288073522, 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 (10447181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740361 + ... + 1740366.

It is an arithmetic number, because the mean of its divisors is an integer number (3480728).

Almost surely, 2^10442181 is an apocalyptic number.

It is an amenable number.

10442181 is a deficient number, since it is larger than the sum of its proper divisors (3480731).

10442181 is an equidigital number, since it uses as much as digits as its factorization.

10442181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480730.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 10442181 is about 3231.4363679330. The cubic root of 10442181 is about 218.5732813840.

Adding to 10442181 its reverse (18124401), we get a palindrome (28566582).

The spelling of 10442181 in words is "ten million, four hundred forty-two thousand, one hundred eighty-one".