220078930 has 8 divisors (see below), whose sum is σ = 396142092. Its totient is φ = 88031568.

The previous prime is 220078907. The next prime is 220078931. The reversal of 220078930 is 39870022.

It can be written as a sum of positive squares in 2 ways, for example, as 217592001 + 2486929 = 14751^2 + 1577^2 .

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 = 220078892 and 220078901.

It is not an unprimeable number, because it can be changed into a prime (220078931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11003937 + ... + 11003956.

Almost surely, 2^220078930 is an apocalyptic number.

220078930 is a deficient number, since it is larger than the sum of its proper divisors (176063162).

220078930 is a wasteful number, since it uses less digits than its factorization.

220078930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22007900.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 220078930 is about 14835.0574653420. The cubic root of 220078930 is about 603.7532598161.

The spelling of 220078930 in words is "two hundred twenty million, seventy-eight thousand, nine hundred thirty".