2238726 has 32 divisors (see below), whose sum is σ = 5165568. Its totient is φ = 633600.

The previous prime is 2238721. The next prime is 2238749. The reversal of 2238726 is 6278322.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁸ + 2¹⁴ + 3¹⁰ + 8⁷ + 7³ + 2¹⁶ + 6 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2238693 and 2238702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6166 + ... + 6518.

It is an arithmetic number, because the mean of its divisors is an integer number (161424).

2^2238726 is an apocalyptic number.

2238726 is an abundant number, since it is smaller than the sum of its proper divisors (2926842).

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

2238726 is a wasteful number, since it uses less digits than its factorization.

2238726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 8064, while the sum is 30.

The square root of 2238726 is about 1496.2372806477. The cubic root of 2238726 is about 130.8178421171.

The spelling of 2238726 in words is "two million, two hundred thirty-eight thousand, seven hundred twenty-six".