220209489 has 16 divisors (see below), whose sum is σ = 326586240. Its totient is φ = 146648880.

The previous prime is 220209481. The next prime is 220209527. The reversal of 220209489 is 984902022.

It is not a de Polignac number, because 220209489 - 2³ = 220209481 is a prime.

It is a super-2 number, since 2×220209489² = 96984438091282242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220209481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24804 + ... + 32490.

It is an arithmetic number, because the mean of its divisors is an integer number (20411640).

Almost surely, 2^220209489 is an apocalyptic number.

It is an amenable number.

220209489 is a deficient number, since it is larger than the sum of its proper divisors (106376751).

220209489 is a wasteful number, since it uses less digits than its factorization.

220209489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757 (or 8751 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 220209489 is about 14839.4571666217. The cubic root of 220209489 is about 603.8726258386.

The spelling of 220209489 in words is "two hundred twenty million, two hundred nine thousand, four hundred eighty-nine".