220403234 has 8 divisors (see below), whose sum is σ = 331430508. Its totient is φ = 109926400.

The previous prime is 220403233. The next prime is 220403243. The reversal of 220403234 is 432304022.

220403234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218951209 + 1452025 = 14797^2 + 1205^2 .

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 (220403231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136607 + ... + 138210.

Almost surely, 2^220403234 is an apocalyptic number.

220403234 is a deficient number, since it is larger than the sum of its proper divisors (111027274).

220403234 is a wasteful number, since it uses less digits than its factorization.

220403234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275220.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 220403234 is about 14845.9837666623. The cubic root of 220403234 is about 604.0496739258.

Adding to 220403234 its reverse (432304022), we get a palindrome (652707256).

The spelling of 220403234 in words is "two hundred twenty million, four hundred three thousand, two hundred thirty-four".