10040823 has 12 divisors (see below), whose sum is σ = 15619240. Its totient is φ = 6178896.

The previous prime is 10040819. The next prime is 10040827. The reversal of 10040823 is 32804001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10040819) and next prime (10040827).

It is not a de Polignac number, because 10040823 - 2² = 10040819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10040796 and 10040805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42793 + ... + 43026.

Almost surely, 2^10040823 is an apocalyptic number.

10040823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10040823 is a deficient number, since it is larger than the sum of its proper divisors (5578417).

10040823 is a wasteful number, since it uses less digits than its factorization.

10040823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85838 (or 85835 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 10040823 is about 3168.7257691381. The cubic root of 10040823 is about 215.7362392630.

Adding to 10040823 its reverse (32804001), we get a palindrome (42844824).

The spelling of 10040823 in words is "ten million, forty thousand, eight hundred twenty-three".