220192891 has 8 divisors (see below), whose sum is σ = 233612640. Its totient is φ = 206825088.

The previous prime is 220192879. The next prime is 220192901. The reversal of 220192891 is 198291022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220192891 - 2¹¹ = 220190843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220192801) 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 in 7 ways as a sum of consecutive naturals, for example, 4071 + ... + 21376.

It is an arithmetic number, because the mean of its divisors is an integer number (29201580).

Almost surely, 2^220192891 is an apocalyptic number.

220192891 is a deficient number, since it is larger than the sum of its proper divisors (13419749).

220192891 is a wasteful number, since it uses less digits than its factorization.

220192891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25973.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 220192891 is about 14838.8979038202. The cubic root of 220192891 is about 603.8574534230.

The spelling of 220192891 in words is "two hundred twenty million, one hundred ninety-two thousand, eight hundred ninety-one".