2209420804 has 12 divisors (see below), whose sum is σ = 3870031564. Its totient is φ = 1103697504.

The previous prime is 2209420799. The next prime is 2209420819. The reversal of 2209420804 is 4080249022.

It can be written as a sum of positive squares in 2 ways, for example, as 1568318404 + 641102400 = 39602^2 + 25320^2 .

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, 248307 + ... + 257050.

Almost surely, 2^2209420804 is an apocalyptic number.

It is an amenable number.

2209420804 is a deficient number, since it is larger than the sum of its proper divisors (1660610760).

2209420804 is a wasteful number, since it uses less digits than its factorization.

2209420804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506454 (or 506452 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2209420804 is about 47004.4764251236. The cubic root of 2209420804 is about 1302.4452603778.

Adding to 2209420804 its reverse (4080249022), we get a palindrome (6289669826).

The spelling of 2209420804 in words is "two billion, two hundred nine million, four hundred twenty thousand, eight hundred four".