2645726 has 16 divisors (see below), whose sum is σ = 4139520. Its totient is φ = 1266840.

The previous prime is 2645723. The next prime is 2645743. The reversal of 2645726 is 6275462.

2645726 = 63² + 64² + ... + 201².

It is a d-powerful number, because it can be written as 2¹⁵ + 6³ + 4⁷ + 5⁹ + 7⁶ + 2¹⁹ + 6⁴ .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2645692 and 2645701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8465 + ... + 8771.

It is an arithmetic number, because the mean of its divisors is an integer number (258720).

2^2645726 is an apocalyptic number.

2645726 is a deficient number, since it is larger than the sum of its proper divisors (1493794).

2645726 is a wasteful number, since it uses less digits than its factorization.

2645726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 20160, while the sum is 32.

The square root of 2645726 is about 1626.5687812079. The cubic root of 2645726 is about 138.3083143734.

The spelling of 2645726 in words is "two million, six hundred forty-five thousand, seven hundred twenty-six".