220331234 has 8 divisors (see below), whose sum is σ = 330680028. Its totient is φ = 110104560.

The previous prime is 220331233. The next prime is 220331281. The reversal of 220331234 is 432133022.

It can be written as a sum of positive squares in 2 ways, for example, as 181306225 + 39025009 = 13465^2 + 6247^2 .

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 (220331231) 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, 25877 + ... + 33320.

Almost surely, 2^220331234 is an apocalyptic number.

220331234 is a deficient number, since it is larger than the sum of its proper divisors (110348794).

220331234 is a wasteful number, since it uses less digits than its factorization.

220331234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61060.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 220331234 is about 14843.5586703459. The cubic root of 220331234 is about 603.9838909933.

Adding to 220331234 its reverse (432133022), we get a palindrome (652464256).

The spelling of 220331234 in words is "two hundred twenty million, three hundred thirty-one thousand, two hundred thirty-four".