220730608 has 20 divisors (see below), whose sum is σ = 488760880. Its totient is φ = 94598784.

The previous prime is 220730603. The next prime is 220730617. The reversal of 220730608 is 806037022.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220730603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985293 + ... + 985516.

It is an arithmetic number, because the mean of its divisors is an integer number (24438044).

Almost surely, 2^220730608 is an apocalyptic number.

220730608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220730608 is an abundant number, since it is smaller than the sum of its proper divisors (268030272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220730608 is a wasteful number, since it uses less digits than its factorization.

220730608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970824 (or 1970818 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 220730608 is about 14857.0053510120. The cubic root of 220730608 is about 604.3485992581.

The spelling of 220730608 in words is "two hundred twenty million, seven hundred thirty thousand, six hundred eight".