2222909 has 8 divisors (see below), whose sum is σ = 2419032. Its totient is φ = 2030400.

The previous prime is 2222893. The next prime is 2222911. The reversal of 2222909 is 9092222.

It can be written as a sum of positive squares in 4 ways, for example, as 386884 + 1836025 = 622^2 + 1355^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2222909 - 2⁴ = 2222893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467 + ... + 2159.

It is an arithmetic number, because the mean of its divisors is an integer number (302379).

2^2222909 is an apocalyptic number.

It is an amenable number.

2222909 is a deficient number, since it is larger than the sum of its proper divisors (196123).

2222909 is a wasteful number, since it uses less digits than its factorization.

2222909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2222909 is about 1490.9423194745. The cubic root of 2222909 is about 130.5090298748.

The spelling of 2222909 in words is "two million, two hundred twenty-two thousand, nine hundred nine".