220464799 has 4 divisors (see below), whose sum is σ = 221739336. Its totient is φ = 219190264.

The previous prime is 220464781. The next prime is 220464841. The reversal of 220464799 is 997464022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220464799 - 2⁹ = 220464287 is a prime.

It is a super-2 number, since 2×220464799² = 97209455196220802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220464779) 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 3 ways as a sum of consecutive naturals, for example, 637009 + ... + 637354.

It is an arithmetic number, because the mean of its divisors is an integer number (55434834).

Almost surely, 2^220464799 is an apocalyptic number.

220464799 is a deficient number, since it is larger than the sum of its proper divisors (1274537).

220464799 is a wasteful number, since it uses less digits than its factorization.

220464799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274536.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 220464799 is about 14848.0570782847. The cubic root of 220464799 is about 604.1059115400.

The spelling of 220464799 in words is "two hundred twenty million, four hundred sixty-four thousand, seven hundred ninety-nine".