220446146 has 16 divisors (see below), whose sum is σ = 341710080. Its totient is φ = 106550640.

The previous prime is 220446143. The next prime is 220446173. The reversal of 220446146 is 641644022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220446143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89240 + ... + 91676.

It is an arithmetic number, because the mean of its divisors is an integer number (21356880).

Almost surely, 2^220446146 is an apocalyptic number.

220446146 is a deficient number, since it is larger than the sum of its proper divisors (121263934).

220446146 is a wasteful number, since it uses less digits than its factorization.

220446146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 220446146 is about 14847.4289356777. The cubic root of 220446146 is about 604.0888737401.

The spelling of 220446146 in words is "two hundred twenty million, four hundred forty-six thousand, one hundred forty-six".