220686470 has 8 divisors (see below), whose sum is σ = 397235664. Its totient is φ = 88274584.

The previous prime is 220686467. The next prime is 220686481. The reversal of 220686470 is 74686022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220686470.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11034314 + ... + 11034333.

It is an arithmetic number, because the mean of its divisors is an integer number (49654458).

Almost surely, 2^220686470 is an apocalyptic number.

220686470 is a deficient number, since it is larger than the sum of its proper divisors (176549194).

220686470 is a wasteful number, since it uses less digits than its factorization.

220686470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22068654.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 220686470 is about 14855.5198495374. The cubic root of 220686470 is about 604.3083140783.

The spelling of 220686470 in words is "two hundred twenty million, six hundred eighty-six thousand, four hundred seventy".