220301992 has 8 divisors (see below), whose sum is σ = 413066250. Its totient is φ = 110150992.

The previous prime is 220301989. The next prime is 220301993. The reversal of 220301992 is 299103022.

It can be written as a sum of positive squares in only one way, i.e., 208918116 + 11383876 = 14454^2 + 3374^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 220301992.

It is not an unprimeable number, because it can be changed into a prime (220301993) by changing a digit.

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 as a sum of consecutive naturals, namely, 13768867 + ... + 13768882.

Almost surely, 2^220301992 is an apocalyptic number.

It is an amenable number.

220301992 is a deficient number, since it is larger than the sum of its proper divisors (192764258).

220301992 is a wasteful number, since it uses less digits than its factorization.

220301992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27537755 (or 27537751 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 220301992 is about 14842.5736312811. The cubic root of 220301992 is about 603.9571698940.

The spelling of 220301992 in words is "two hundred twenty million, three hundred one thousand, nine hundred ninety-two".