2720990 has 16 divisors (see below), whose sum is σ = 5155920. Its totient is φ = 1031040.

The previous prime is 2720987. The next prime is 2720999. The reversal of 2720990 is 990272.

It is a happy number.

2720990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720999) by changing a digit.

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, 6971 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (322245).

2^2720990 is an apocalyptic number.

2720990 is a deficient number, since it is larger than the sum of its proper divisors (2434930).

2720990 is a wasteful number, since it uses less digits than its factorization.

2720990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2720990 is about 1649.5423607777. The cubic root of 2720990 is about 139.6075745131.

The spelling of 2720990 in words is "two million, seven hundred twenty thousand, nine hundred ninety".