1222588904 has 8 divisors (see below), whose sum is σ = 2292354210. Its totient is φ = 611294448.

The previous prime is 1222588879. The next prime is 1222588907. The reversal of 1222588904 is 4098852221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 646684900 + 575904004 = 25430^2 + 23998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1222588907) by changing a digit.

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 as a sum of consecutive naturals, namely, 76411799 + ... + 76411814.

Almost surely, 2^1222588904 is an apocalyptic number.

It is an amenable number.

1222588904 is a deficient number, since it is larger than the sum of its proper divisors (1069765306).

1222588904 is a wasteful number, since it uses less digits than its factorization.

1222588904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152823619 (or 152823615 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1222588904 is about 34965.5388060873. The cubic root of 1222588904 is about 1069.2850215250.

The spelling of 1222588904 in words is "one billion, two hundred twenty-two million, five hundred eighty-eight thousand, nine hundred four".