220337389 has 8 divisors (see below), whose sum is σ = 230499000. Its totient is φ = 210346752.

The previous prime is 220337371. The next prime is 220337407. The reversal of 220337389 is 983733022.

It is an interprime number because it is at equal distance from previous prime (220337371) and next prime (220337407).

It can be written as a sum of positive squares in 4 ways, for example, as 3276100 + 217061289 = 1810^2 + 14733^2 .

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 220337389 - 2¹¹ = 220335341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220337189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40104 + ... + 45265.

It is an arithmetic number, because the mean of its divisors is an integer number (28812375).

Almost surely, 2^220337389 is an apocalyptic number.

220337389 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

220337389 is a deficient number, since it is larger than the sum of its proper divisors (10161611).

220337389 is an equidigital number, since it uses as much as digits as its factorization.

220337389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85487.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 220337389 is about 14843.7659978861. The cubic root of 220337389 is about 603.9895150805.

The spelling of 220337389 in words is "two hundred twenty million, three hundred thirty-seven thousand, three hundred eighty-nine".