2211804380 has 24 divisors (see below), whose sum is σ = 4918012848. Its totient is φ = 832679168.

The previous prime is 2211804341. The next prime is 2211804391. The reversal of 2211804380 is 834081122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3252314 + ... + 3252993.

It is an arithmetic number, because the mean of its divisors is an integer number (204917202).

Almost surely, 2^2211804380 is an apocalyptic number.

2211804380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211804380 is an abundant number, since it is smaller than the sum of its proper divisors (2706208468).

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

2211804380 is a wasteful number, since it uses less digits than its factorization.

2211804380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505333 (or 6505331 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2211804380 is about 47029.8243670971. The cubic root of 2211804380 is about 1302.9134617472.

The spelling of 2211804380 in words is "two billion, two hundred eleven million, eight hundred four thousand, three hundred eighty".