220284963 has 24 divisors (see below), whose sum is σ = 340402608. Its totient is φ = 136783872.

The previous prime is 220284959. The next prime is 220285049. The reversal of 220284963 is 369482022.

It is a Cunningham number, because it is equal to 14842²-1.

It is not a de Polignac number, because 220284963 - 2² = 220284959 is a prime.

It is a super-3 number, since 3×220284963³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (220284763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7420 + ... + 22262.

It is an arithmetic number, because the mean of its divisors is an integer number (14183442).

Almost surely, 2^220284963 is an apocalyptic number.

220284963 is a deficient number, since it is larger than the sum of its proper divisors (120117645).

220284963 is a wasteful number, since it uses less digits than its factorization.

220284963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14963 (or 14960 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 220284963 is about 14841.9999663118. Note that the first 4 decimals coincide. The cubic root of 220284963 is about 603.9416078443.

The spelling of 220284963 in words is "two hundred twenty million, two hundred eighty-four thousand, nine hundred sixty-three".