2180726 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 992640.

The previous prime is 2180723. The next prime is 2180741. The reversal of 2180726 is 6270812.

It is a junction number, because it is equal to n+sod(n) for n = 2180695 and 2180704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^2180726 is an apocalyptic number.

2180726 is a deficient number, since it is larger than the sum of its proper divisors (1396234).

2180726 is a wasteful number, since it uses less digits than its factorization.

2180726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2180726 is about 1476.7281401802. The cubic root of 2180726 is about 129.6782179741.

The spelling of 2180726 in words is "two million, one hundred eighty thousand, seven hundred twenty-six".