220424455 has 8 divisors (see below), whose sum is σ = 265445712. Its totient is φ = 175715328.

The previous prime is 220424443. The next prime is 220424471. The reversal of 220424455 is 554424022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220424455 - 2⁵ = 220424423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76474 + ... + 79303.

It is an arithmetic number, because the mean of its divisors is an integer number (33180714).

Almost surely, 2^220424455 is an apocalyptic number.

220424455 is a deficient number, since it is larger than the sum of its proper divisors (45021257).

220424455 is a wasteful number, since it uses less digits than its factorization.

220424455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156065.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 220424455 is about 14846.6984545386. The cubic root of 220424455 is about 604.0690597980.

Adding to 220424455 its reverse (554424022), we get a palindrome (774848477).

The spelling of 220424455 in words is "two hundred twenty million, four hundred twenty-four thousand, four hundred fifty-five".