220424622 has 64 divisors (see below), whose sum is σ = 497629440. Its totient is φ = 64512000.

The previous prime is 220424599. The next prime is 220424641. The reversal of 220424622 is 226424022.

It is a junction number, because it is equal to n+sod(n) for n = 220424592 and 220424601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286254 + ... + 287022.

It is an arithmetic number, because the mean of its divisors is an integer number (7775460).

Almost surely, 2^220424622 is an apocalyptic number.

220424622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 220424622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248814720).

220424622 is an abundant number, since it is smaller than the sum of its proper divisors (277204818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220424622 is a wasteful number, since it uses less digits than its factorization.

220424622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 220424622 is about 14846.7040786836. The cubic root of 220424622 is about 604.0692123514.

Adding to 220424622 its reverse (226424022), we get a palindrome (446848644).

The spelling of 220424622 in words is "two hundred twenty million, four hundred twenty-four thousand, six hundred twenty-two".