220773489 has 8 divisors (see below), whose sum is σ = 297672480. Its totient is φ = 145528416.

The previous prime is 220773473. The next prime is 220773493. The reversal of 220773489 is 984377022.

220773489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220773489 - 2⁴ = 220773473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220773489.

It is not an unprimeable number, because it can be changed into a prime (220783489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413167 + ... + 413700.

It is an arithmetic number, because the mean of its divisors is an integer number (37209060).

Almost surely, 2^220773489 is an apocalyptic number.

It is an amenable number.

220773489 is a deficient number, since it is larger than the sum of its proper divisors (76898991).

220773489 is an equidigital number, since it uses as much as digits as its factorization.

220773489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826959.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 220773489 is about 14858.4484048638. The cubic root of 220773489 is about 604.3877320189.

The spelling of 220773489 in words is "two hundred twenty million, seven hundred seventy-three thousand, four hundred eighty-nine".