10840031 has 4 divisors (see below), whose sum is σ = 11104464. Its totient is φ = 10575600.

The previous prime is 10840021. The next prime is 10840057. The reversal of 10840031 is 13004801.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10840031 - 2⁶ = 10839967 is a prime.

It is a super-2 number, since 2×10840031² = 235012544161922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10839991 and 10840009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10840021) 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, 132155 + ... + 132236.

It is an arithmetic number, because the mean of its divisors is an integer number (2776116).

Almost surely, 2^10840031 is an apocalyptic number.

10840031 is a deficient number, since it is larger than the sum of its proper divisors (264433).

10840031 is an equidigital number, since it uses as much as digits as its factorization.

10840031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264432.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 10840031 is about 3292.4202344172. The cubic root of 10840031 is about 221.3146558992.

Adding to 10840031 its reverse (13004801), we get a palindrome (23844832).

The spelling of 10840031 in words is "ten million, eight hundred forty thousand, thirty-one".