220218908 has 24 divisors (see below), whose sum is σ = 474318432. Its totient is φ = 87119424.

The previous prime is 220218907. The next prime is 220218917. The reversal of 220218908 is 809812022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220218907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302135 + ... + 302862.

It is an arithmetic number, because the mean of its divisors is an integer number (19763268).

Almost surely, 2^220218908 is an apocalyptic number.

220218908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220218908 is an abundant number, since it is smaller than the sum of its proper divisors (254099524).

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

220218908 is a wasteful number, since it uses less digits than its factorization.

220218908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605021 (or 605019 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 220218908 is about 14839.7745265890. The cubic root of 220218908 is about 603.8812355118.

The spelling of 220218908 in words is "two hundred twenty million, two hundred eighteen thousand, nine hundred eight".