220003730 has 8 divisors (see below), whose sum is σ = 396006732. Its totient is φ = 88001488.

The previous prime is 220003697. The next prime is 220003769. The reversal of 220003730 is 37300022.

It can be written as a sum of positive squares in 2 ways, for example, as 215238241 + 4765489 = 14671^2 + 2183^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 220003699 and 220003708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11000177 + ... + 11000196.

Almost surely, 2^220003730 is an apocalyptic number.

220003730 is a deficient number, since it is larger than the sum of its proper divisors (176003002).

220003730 is a wasteful number, since it uses less digits than its factorization.

220003730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22000380.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 220003730 is about 14832.5227119327. The cubic root of 220003730 is about 603.6844853732.

Adding to 220003730 its reverse (37300022), we get a palindrome (257303752).

The spelling of 220003730 in words is "two hundred twenty million, three thousand, seven hundred thirty".