2223406081 has 12 divisors (see below), whose sum is σ = 2549220012. Its totient is φ = 1931644416.

The previous prime is 2223406079. The next prime is 2223406139. The reversal of 2223406081 is 1806043222.

It can be written as a sum of positive squares in 6 ways, for example, as 103632400 + 2119773681 = 10180^2 + 46041^2 .

It is not a de Polignac number, because 2223406081 - 2¹ = 2223406079 is a prime.

It is a super-2 number, since 2×2223406081² = 9887069202055557122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2223406001) 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 11 ways as a sum of consecutive naturals, for example, 384076 + ... + 389821.

It is an arithmetic number, because the mean of its divisors is an integer number (212435001).

Almost surely, 2^2223406081 is an apocalyptic number.

It is an amenable number.

2223406081 is a deficient number, since it is larger than the sum of its proper divisors (325813931).

2223406081 is a wasteful number, since it uses less digits than its factorization.

2223406081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773940 (or 773927 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2223406081 is about 47153.0071257391. The cubic root of 2223406081 is about 1305.1875717721.

The spelling of 2223406081 in words is "two billion, two hundred twenty-three million, four hundred six thousand, eighty-one".