2722080 has 96 divisors (see below), whose sum is σ = 8817984. Its totient is φ = 705536.

The previous prime is 2722067. The next prime is 2722087. The reversal of 2722080 is 802272.

It is a tau number, because it is divible by the number of its divisors (96).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2722087) 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, 25387 + ... + 25493.

It is an arithmetic number, because the mean of its divisors is an integer number (91854).

2^2722080 is an apocalyptic number.

2722080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2722080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4408992).

2722080 is an abundant number, since it is smaller than the sum of its proper divisors (6095904).

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

2722080 is a wasteful number, since it uses less digits than its factorization.

2722080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2722080 is about 1649.8727223638. The cubic root of 2722080 is about 139.6262138002.

The spelling of 2722080 in words is "two million, seven hundred twenty-two thousand, eighty".