2211380 has 12 divisors (see below), whose sum is σ = 4643940. Its totient is φ = 884544.

The previous prime is 2211373. The next prime is 2211409. The reversal of 2211380 is 831122.

2211380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1036324 + 1175056 = 1018^2 + 1084^2 .

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 3 ways as a sum of consecutive naturals, for example, 55265 + ... + 55304.

It is an arithmetic number, because the mean of its divisors is an integer number (386995).

2^2211380 is an apocalyptic number.

2211380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211380 is an abundant number, since it is smaller than the sum of its proper divisors (2432560).

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

2211380 is a wasteful number, since it uses less digits than its factorization.

2211380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110578 (or 110576 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2211380 is about 1487.0709465254. The cubic root of 2211380 is about 130.2830126200.

The spelling of 2211380 in words is "two million, two hundred eleven thousand, three hundred eighty".