220394193 has 16 divisors (see below), whose sum is σ = 300433536. Its totient is φ = 143661440.

The previous prime is 220394189. The next prime is 220394197. The reversal of 220394193 is 391493022.

220394193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220394189) and next prime (220394197).

It is a cyclic number.

It is not a de Polignac number, because 220394193 - 2² = 220394189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220394197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47221 + ... + 51677.

It is an arithmetic number, because the mean of its divisors is an integer number (18777096).

Almost surely, 2^220394193 is an apocalyptic number.

It is an amenable number.

220394193 is a deficient number, since it is larger than the sum of its proper divisors (80039343).

220394193 is a wasteful number, since it uses less digits than its factorization.

220394193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 220394193 is about 14845.6792704140. The cubic root of 220394193 is about 604.0414143861.

The spelling of 220394193 in words is "two hundred twenty million, three hundred ninety-four thousand, one hundred ninety-three".