5640726 has 32 divisors (see below), whose sum is σ = 13886208. Its totient is φ = 1487520.

The previous prime is 5640721. The next prime is 5640743. The reversal of 5640726 is 6270465.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5640693 and 5640702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4620 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (433944).

Almost surely, 2^5640726 is an apocalyptic number.

5640726 is an abundant number, since it is smaller than the sum of its proper divisors (8245482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5640726 is a wasteful number, since it uses less digits than its factorization.

5640726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 5640726 is about 2375.0212630627. The cubic root of 5640726 is about 178.0102464328.

The spelling of 5640726 in words is "five million, six hundred forty thousand, seven hundred twenty-six".