2720126 has 16 divisors (see below), whose sum is σ = 4276608. Its totient is φ = 1296000.

The previous prime is 2720117. The next prime is 2720147. The reversal of 2720126 is 6210272.

2720126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2720098 and 2720107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4226 + ... + 4826.

It is an arithmetic number, because the mean of its divisors is an integer number (267288).

2^2720126 is an apocalyptic number.

2720126 is a deficient number, since it is larger than the sum of its proper divisors (1556482).

2720126 is a wasteful number, since it uses less digits than its factorization.

2720126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2720126 is about 1649.2804491656. The cubic root of 2720126 is about 139.5927963486.

Adding to 2720126 its reverse (6210272), we get a palindrome (8930398).

The spelling of 2720126 in words is "two million, seven hundred twenty thousand, one hundred twenty-six".