10440039 has 4 divisors (see below), whose sum is σ = 13920056. Its totient is φ = 6960024.

The previous prime is 10440037. The next prime is 10440041. The reversal of 10440039 is 93004401.

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

It is an interprime number because it is at equal distance from previous prime (10440037) and next prime (10440041).

It is not a de Polignac number, because 10440039 - 2¹ = 10440037 is a prime.

It is a super-3 number, since 3×10440039³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10439997 and 10440024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10440037) 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, 1740004 + ... + 1740009.

It is an arithmetic number, because the mean of its divisors is an integer number (3480014).

Almost surely, 2^10440039 is an apocalyptic number.

10440039 is a deficient number, since it is larger than the sum of its proper divisors (3480017).

10440039 is an equidigital number, since it uses as much as digits as its factorization.

10440039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480016.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 10440039 is about 3231.1049193736. The cubic root of 10440039 is about 218.5583350816.

The spelling of 10440039 in words is "ten million, four hundred forty thousand, thirty-nine".