220889029 has 4 divisors (see below), whose sum is σ = 220974400. Its totient is φ = 220803660.

The previous prime is 220888963. The next prime is 220889051. The reversal of 220889029 is 920988022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220889029 - 2⁷ = 220888901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220888982 and 220889000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220889069) 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 3 ways as a sum of consecutive naturals, for example, 38679 + ... + 44020.

It is an arithmetic number, because the mean of its divisors is an integer number (55243600).

Almost surely, 2^220889029 is an apocalyptic number.

It is an amenable number.

220889029 is a deficient number, since it is larger than the sum of its proper divisors (85371).

220889029 is an equidigital number, since it uses as much as digits as its factorization.

220889029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85370.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 220889029 is about 14862.3359200363. The cubic root of 220889029 is about 604.4931474240.

It can be divided in two parts, 220 and 889029, that added together give a square (889249 = 943²).

The spelling of 220889029 in words is "two hundred twenty million, eight hundred eighty-nine thousand, twenty-nine".