10440293 has 4 divisors (see below), whose sum is σ = 10450188. Its totient is φ = 10430400.

The previous prime is 10440277. The next prime is 10440299. The reversal of 10440293 is 39204401.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39204401 = 179 ⋅219019.

It can be written as a sum of positive squares in 2 ways, for example, as 187489 + 10252804 = 433^2 + 3202^2 .

It is a cyclic number.

It is not a de Polignac number, because 10440293 - 2⁴ = 10440277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440299) 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, 3146 + ... + 5547.

It is an arithmetic number, because the mean of its divisors is an integer number (2612547).

Almost surely, 2^10440293 is an apocalyptic number.

It is an amenable number.

10440293 is a deficient number, since it is larger than the sum of its proper divisors (9895).

10440293 is an equidigital number, since it uses as much as digits as its factorization.

10440293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9894.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 10440293 is about 3231.1442245743. The cubic root of 10440293 is about 218.5601075324.

Adding to 10440293 its reverse (39204401), we get a palindrome (49644694).

The spelling of 10440293 in words is "ten million, four hundred forty thousand, two hundred ninety-three".