10040449 has 4 divisors (see below), whose sum is σ = 10285380. Its totient is φ = 9795520.

The previous prime is 10040447. The next prime is 10040453. The reversal of 10040449 is 94404001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94404001 = 571 ⋅165331.

It can be written as a sum of positive squares in 2 ways, for example, as 399424 + 9641025 = 632^2 + 3105^2 .

It is a cyclic number.

It is not a de Polignac number, because 10040449 - 2¹ = 10040447 is a prime.

It is a super-2 number, since 2×10040449² = 201621232243202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10040447) 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, 122404 + ... + 122485.

It is an arithmetic number, because the mean of its divisors is an integer number (2571345).

Almost surely, 2^10040449 is an apocalyptic number.

It is an amenable number.

10040449 is a deficient number, since it is larger than the sum of its proper divisors (244931).

10040449 is an equidigital number, since it uses as much as digits as its factorization.

10040449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244930.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 10040449 is about 3168.6667543306. Note that the first 3 decimals coincide. The cubic root of 10040449 is about 215.7335606527.

The spelling of 10040449 in words is "ten million, forty thousand, four hundred forty-nine".