220549730 has 16 divisors (see below), whose sum is σ = 398139840. Its totient is φ = 87964272.

The previous prime is 220549699. The next prime is 220549733. The reversal of 220549730 is 37945022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220549733) 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, 28310 + ... + 35249.

It is an arithmetic number, because the mean of its divisors is an integer number (24883740).

Almost surely, 2^220549730 is an apocalyptic number.

220549730 is a deficient number, since it is larger than the sum of its proper divisors (177590110).

220549730 is a wasteful number, since it uses less digits than its factorization.

220549730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63913.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 220549730 is about 14850.9168067160. The cubic root of 220549730 is about 604.1834760497.

The spelling of 220549730 in words is "two hundred twenty million, five hundred forty-nine thousand, seven hundred thirty".