220384539 has 12 divisors (see below), whose sum is σ = 319738536. Its totient is φ = 146274432.

The previous prime is 220384537. The next prime is 220384579. The reversal of 220384539 is 935483022.

220384539 is a `hidden beast` number, since 220 + 384 + 53 + 9 = 666.

220384539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220384539 - 2¹ = 220384537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220384537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51894 + ... + 55979.

It is an arithmetic number, because the mean of its divisors is an integer number (26644878).

Almost surely, 2^220384539 is an apocalyptic number.

220384539 is a deficient number, since it is larger than the sum of its proper divisors (99353997).

220384539 is a wasteful number, since it uses less digits than its factorization.

220384539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108106 (or 108103 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 220384539 is about 14845.3541217446. The cubic root of 220384539 is about 604.0325945818.

The spelling of 220384539 in words is "two hundred twenty million, three hundred eighty-four thousand, five hundred thirty-nine".