220347970 has 8 divisors (see below), whose sum is σ = 396626364. Its totient is φ = 88139184.

The previous prime is 220347961. The next prime is 220347973. The reversal of 220347970 is 79743022.

It can be written as a sum of positive squares in 2 ways, for example, as 218655369 + 1692601 = 14787^2 + 1301^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220347973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11017389 + ... + 11017408.

Almost surely, 2^220347970 is an apocalyptic number.

220347970 is a deficient number, since it is larger than the sum of its proper divisors (176278394).

220347970 is a wasteful number, since it uses less digits than its factorization.

220347970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22034804.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 220347970 is about 14844.1224058548. The cubic root of 220347970 is about 603.9991831488. Note that the first 3 decimals are identical.

The spelling of 220347970 in words is "two hundred twenty million, three hundred forty-seven thousand, nine hundred seventy".