220424331 has 16 divisors (see below), whose sum is σ = 304572960. Its totient is φ = 141630720.

The previous prime is 220424327. The next prime is 220424357. The reversal of 220424331 is 133424022.

It is not a de Polignac number, because 220424331 - 2² = 220424327 is a prime.

It is a super-2 number, since 2×220424331² = 97173771393595122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220424298 and 220424307.

It is not an unprimeable number, because it can be changed into a prime (220424311) 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 15 ways as a sum of consecutive naturals, for example, 55591 + ... + 59423.

It is an arithmetic number, because the mean of its divisors is an integer number (19035810).

Almost surely, 2^220424331 is an apocalyptic number.

220424331 is a deficient number, since it is larger than the sum of its proper divisors (84148629).

220424331 is a wasteful number, since it uses less digits than its factorization.

220424331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 220424331 is about 14846.6942785254. The cubic root of 220424331 is about 604.0689465247.

Adding to 220424331 its reverse (133424022), we get a palindrome (353848353).

The spelling of 220424331 in words is "two hundred twenty million, four hundred twenty-four thousand, three hundred thirty-one".