220974128 has 10 divisors (see below), whose sum is σ = 428137404. Its totient is φ = 110487056.

The previous prime is 220974121. The next prime is 220974151. The reversal of 220974128 is 821479022.

It is not an unprimeable number, because it can be changed into a prime (220974121) 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 as a sum of consecutive naturals, namely, 6905426 + ... + 6905457.

Almost surely, 2^220974128 is an apocalyptic number.

It is an amenable number.

220974128 is a deficient number, since it is larger than the sum of its proper divisors (207163276).

220974128 is a wasteful number, since it uses less digits than its factorization.

220974128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810891 (or 13810885 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 220974128 is about 14865.1985523235. The cubic root of 220974128 is about 604.5707658219.

The spelling of 220974128 in words is "two hundred twenty million, nine hundred seventy-four thousand, one hundred twenty-eight".