1922217268 has 24 divisors (see below), whose sum is σ = 3648632904. Its totient is φ = 882508800.

The previous prime is 1922217259. The next prime is 1922217287. The reversal of 1922217268 is 8627122291.

It can be written as a sum of positive squares in 4 ways, for example, as 504092304 + 1418124964 = 22452^2 + 37658^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1922217268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341943 + ... + 347518.

It is an arithmetic number, because the mean of its divisors is an integer number (152026371).

Almost surely, 2^1922217268 is an apocalyptic number.

It is an amenable number.

1922217268 is a deficient number, since it is larger than the sum of its proper divisors (1726415636).

1922217268 is a wasteful number, since it uses less digits than its factorization.

1922217268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689523 (or 689521 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 1922217268 is about 43843.0982938022. The cubic root of 1922217268 is about 1243.3712604939.

The spelling of 1922217268 in words is "one billion, nine hundred twenty-two million, two hundred seventeen thousand, two hundred sixty-eight".