220321433 has 16 divisors (see below), whose sum is σ = 231137280. Its totient is φ = 209773200.

The previous prime is 220321427. The next prime is 220321459. The reversal of 220321433 is 334123022.

220321433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220321433 - 2¹⁶ = 220255897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220321463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921728 + ... + 921966.

It is an arithmetic number, because the mean of its divisors is an integer number (14446080).

Almost surely, 2^220321433 is an apocalyptic number.

It is an amenable number.

220321433 is a deficient number, since it is larger than the sum of its proper divisors (10815847).

220321433 is a wasteful number, since it uses less digits than its factorization.

220321433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628.

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

The square root of 220321433 is about 14843.2285234716. The cubic root of 220321433 is about 603.9749351834.

Adding to 220321433 its reverse (334123022), we get a palindrome (554444455).

The spelling of 220321433 in words is "two hundred twenty million, three hundred twenty-one thousand, four hundred thirty-three".