10640726 has 4 divisors (see below), whose sum is σ = 15961092. Its totient is φ = 5320362.

The previous prime is 10640723. The next prime is 10640731. The reversal of 10640726 is 62704601.

10640726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62704601 = 23 ⋅2726287.

It is a super-2 number, since 2×10640726² = 226450099614152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10640695 and 10640704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10640723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660180 + ... + 2660183.

It is an arithmetic number, because the mean of its divisors is an integer number (3990273).

Almost surely, 2^10640726 is an apocalyptic number.

10640726 is a deficient number, since it is larger than the sum of its proper divisors (5320366).

10640726 is an equidigital number, since it uses as much as digits as its factorization.

10640726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320365.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 10640726 is about 3262.0125689519. The cubic root of 10640726 is about 219.9498921694.

The spelling of 10640726 in words is "ten million, six hundred forty thousand, seven hundred twenty-six".