222809385 has 32 divisors (see below), whose sum is σ = 362102400. Its totient is φ = 116979200.

The previous prime is 222809381. The next prime is 222809399. The reversal of 222809385 is 583908222.

It is not a de Polignac number, because 222809385 - 2² = 222809381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222809381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292405 + ... + 293165.

It is an arithmetic number, because the mean of its divisors is an integer number (11315700).

Almost surely, 2^222809385 is an apocalyptic number.

It is an amenable number.

222809385 is a deficient number, since it is larger than the sum of its proper divisors (139293015).

222809385 is a wasteful number, since it uses less digits than its factorization.

222809385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 222809385 is about 14926.8008963743. The cubic root of 222809385 is about 606.2398679002.

The spelling of 222809385 in words is "two hundred twenty-two million, eight hundred nine thousand, three hundred eighty-five".