10440823 has 4 divisors (see below), whose sum is σ = 10990360. Its totient is φ = 9891288.

The previous prime is 10440809. The next prime is 10440851. The reversal of 10440823 is 32804401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32804401 = 7 ⋅4686343.

It is a cyclic number.

It is not a de Polignac number, because 10440823 - 2¹⁷ = 10309751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10440794 and 10440803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440853) 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, 274740 + ... + 274777.

It is an arithmetic number, because the mean of its divisors is an integer number (2747590).

Almost surely, 2^10440823 is an apocalyptic number.

10440823 is a deficient number, since it is larger than the sum of its proper divisors (549537).

10440823 is an equidigital number, since it uses as much as digits as its factorization.

10440823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549536.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 10440823 is about 3231.2262378237. The cubic root of 10440823 is about 218.5638058608.

The spelling of 10440823 in words is "ten million, four hundred forty thousand, eight hundred twenty-three".