220471008 has 96 divisors (see below), whose sum is σ = 623572992. Its totient is φ = 68006400.

The previous prime is 220470997. The next prime is 220471051. The reversal of 220471008 is 800174022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66838 + ... + 70058.

It is an arithmetic number, because the mean of its divisors is an integer number (6495552).

Almost surely, 2^220471008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220471008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311786496).

220471008 is an abundant number, since it is smaller than the sum of its proper divisors (403101984).

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

220471008 is a wasteful number, since it uses less digits than its factorization.

220471008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288 (or 3280 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 220471008 is about 14848.2661614075. The cubic root of 220471008 is about 604.1115826773. Note that the first 3 decimals are identical.

The spelling of 220471008 in words is "two hundred twenty million, four hundred seventy-one thousand, eight".