10442869 has 4 divisors (see below), whose sum is σ = 10585996. Its totient is φ = 10299744.

The previous prime is 10442819. The next prime is 10442891. The reversal of 10442869 is 96824401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8910225 + 1532644 = 2985^2 + 1238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10442869 is a prime.

It is a super-3 number, since 3×10442869³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10442819) 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, 71454 + ... + 71599.

It is an arithmetic number, because the mean of its divisors is an integer number (2646499).

Almost surely, 2^10442869 is an apocalyptic number.

It is an amenable number.

10442869 is a deficient number, since it is larger than the sum of its proper divisors (143127).

10442869 is an equidigital number, since it uses as much as digits as its factorization.

10442869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143126.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 10442869 is about 3231.5428203878. The cubic root of 10442869 is about 218.5780816301.

It can be divided in two parts, 10442 and 869, that added together give a palindrome (11311).

The spelling of 10442869 in words is "ten million, four hundred forty-two thousand, eight hundred sixty-nine".